Fixed a test run being executed a second time in the same Editor session when a domain reload happened immediately after the run finished, which can occur when a test changes the active build target.
Test FrameworkFix
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Fixed play mode tests on a device stalling part way through a run when the screen went to sleep or the idle screen started, which deactivated the player and paused it.
Fix QualitySettings test instability.
Added support for the <pos> rich text tag in the Advanced Text Generator.
Fixed an out-of-bounds memory read when a TextMesh or legacy UI Text string ended with an unterminated quad tag parameter.
Fixed an out-of-bounds memory read when a TextMesh or legacy UI Text string ended with an unterminated rich text tag.
Fixed ATG line spacing so lines separated by a line break are spaced like wrapped lines, and the first and last lines are no longer offset by the font's line gap.
Fixed the Font Asset Migration window not listing font assets imported while the window was open.
Fixed dynamic font assets polluting the version control system.
Fixed the Font Asset Creator and Sprite Importer windows failing to reload and logging a serialization error when toggling UI Toolkit Live Reload.
Linked bug report
UUM-150353: Font Asset Creator and Sprite Importer windows throw Window serialization errors when enabling or disabling UI Toolkit Live Reload option
Steps to reproduce: Open the attached project Right-click on the Font Asset Creator window's handle Select the option to enable/disable the UI Toolkit Live Reload option Observe the Console window Actual results: "Window serialization will fail" error message is thrown every time the option is enabled/disabled Expected results: No warnings or Errors are thrown when enabling or disabling the UI…
Retrieved 2026-11-10Fixed the font atlas of a dynamic Font Asset being included in a player build when the UI Builder was open during the build.
Added OS font fallbacks support to TextMeshPro. Characters that none of the assigned font assets contain are now rendered using fonts installed on the operating system.
Bug "TextMeshPro input field doesn't remove characters from first backspace when variant characters are used with the input field
Linked bug report
UUM-140383: TextMeshPro input field doesn't remove characters from first backspace when variant characters are used with the input field
Steps to reproduce: 1. Open the attached project “IN-139093” 2. In the Project window, open “Assets” → “Scenes” → “SampleScene” 3. Enter Play mode 4. Press the “Button” in the center 5. Try deleting text from “TMP_InputField” 6. Observe the Game view Actual result: The first 2 character get changed before deletion (need 2 backspaces), but after that the other ones don’t have any visual change …
Retrieved 2026-11-09Fixed non-deterministic Addressables bundle hashes caused by a debug symbols pragma in the TMP mobile SDF shaders.
Linked bug report
UUM-153225: Debug pragma in stock TMP shader breaks determinism when building Addressables Asset Bundles
How to reproduce: 1. Open the attached “IN-154213.zip” Project 2. Open the Addressables Groups Window (Window → Asset Management → Adressables → Groups) 3. Build the Addressables (Build → New Build → Default Build Script) 4. Open the Adressables Report Window for the built process or manually find the built files in the Project Folder 5. Observe the .bundle file Hash and file sizes 6. Close th…
Retrieved 2026-11-10Fixed the Editor freezing when a TextMeshPro text with a Content Size Fitter contained a hyphen preceded by a space at narrow widths.
Linked bug report
UUM-152921: Editor freezes when the Text of a TextMeshPro GameObject with a Content Size Fitter Component is changed to a string containing a hyphen preceded by a space
Reproduction steps: 1. Create a new project 2. GameObject > UI > Text - TextMeshPro 3. Press “Import TMP Essentials” button in TMP Importer window 4. Select the newly created “Text (TMP)” GameObject and set Width to 25 in the Rect Transform 5. Press “Add Component” button, add Content Size Fitter and set Vertical Fit to Preferred Size 6. Set the Text field to any two words (e.g. “text text”) a…
Retrieved 2026-11-10Moves essential TextMesh Pro resources from the TMP Essential Resources unity package to Packages/com.unity.ugui/Package Resources/
Fixed a SerializedObjectNotCreatableException error logged during domain reload while a Signal Receiver inspector exists.
TimelineFix
Fixed an issue where property changes were not correctly re-evaluated in the Timeline after being added.
Linked bug report
UUM-150294: Timeline does not re-evaluate Inspector property changes when that property is added after the the clip was selected
How to reproduce: Open the attached project “IN-151771” In the Project window, open the “Assets/Scenes/ArrayProperty/SampleScene_ArrayProperty” scene In the Hierarchy, select the “Director” GameObject In the Timeline window, select the first track In the Inspector, expand the “Multi Setting Timeline Clip” component so that the “Template → Values” array is visible Change the value on “Element 0…
Retrieved 2026-11-10Fixed an issue where scrubbing the timeline while in recording mode could trigger additional graph rebuilds
Linked bug report
UUM-150705: Editor performance drops significantly when dragging the Timeline playhead over a specific clip with the Inspector open
How to reproduce: Open the attached project “IN-152135” In the Project window, open the “Assets/Scenes/AnimatedProperty/SampleScene_AnimatedProperty” scene Ensure that the Inspector, Timeline and Profiler windows are visible on screen In the Hierarchy, select the “SuperDirector” GameObject In the Timeline window, select the last “Setting” clip Ensure that the target mode in the Profiler window…
Retrieved 2026-11-10Fixed timeline preview ownership
Fixed RectMask2D softening the edges of clipped content when its softness is zero
Linked bug report
UUM-150815: Edges are softened when a RectMask2D with 0 softness is used
How to reproduce: Open the attached project “IN-152255” Open the “Assets/Scenes/RectMask2D_ClipEdgeAA“ scene Enter Play Mode Observe the Game View Actual result: Edges on the left most square are not white Expected result: Edges on all squares are white Reproducible with: 6000.0.0f1, 6000.0.82f1, 6000.3.23f1, 6000.5.11f1, 6000.6.0f1, 6000.7.0a6 Reproducible on: macOS 26.5.2 (M4 Max) Not reprod…
Retrieved 2026-11-10Use AssetPostprocessor.OnProcessScene instead of IProcessSceneWithReport
uGUIFix
Adding a Standard Element from the GameObject menu now adds it to the UXML Template GameObject set as Default Parent instead of creating a new one.
Fixed "Create Template..." in the UI Viewport not carrying the element's name over to the new template instance, which broke USS selectors and UQuery lookups targeting that name.
Fixed "Create Template..." in the UI Viewport silently overwriting a UXML file that the selected element instantiates, which destroyed the file's contents through a circular reference.
Fixed "display: grid" elements ignoring their own min-width, min-height, max-width, and max-height when their size is content-based.
UI ToolkitFix
Fixed "display: grid" elements placing centered or end-aligned tracks outside the container when a maximum size makes it smaller than the available space.
UI ToolkitFix
Fixed "fr" and stretched "auto" grid tracks not expanding into the space granted by the grid container's min-width or min-height when the container is otherwise sized by its content.
UI ToolkitFix
Fixed "fr" grid tracks in a content-sized grid container expanding to fill the available space instead of sizing to their content.
UI ToolkitFix
Fixed "fr" grid tracks whose flex factors sum below 1 taking all of the free space instead of their fraction of it.
UI ToolkitFix
Fixed "Invalid value for image texture Keyword" warnings being logged when a stylesheet sets the --unity-image custom property to none.
Fixed "minmax()" grid tracks staying at their minimum size when the same axis also contains an "fr" track.
Fixed "Property is not associated with a valid UXML attribute description." errors when selecting a read-only element in the UI Viewport with two Inspector windows open.
Fixed "Unpack Template" in the UI Viewport discarding attribute overrides that target elements inside nested template instances.
Fixed a "SelectorAccelerationCache: association already exists" error being logged when a style sheet is attached to a UI Document both directly and through @import.
Linked bug report
UUM-151721: "SelectorAccelerationCache ... association already exists" error is thrown when a style sheet is attached to a UI Document both directly and through @import
How to reproduce: Open the attached “IN-152893” project In the Project tab, open the “Assets/UI/Documents/Element1.uxml” Close the UI Builder window In the Project tab, open the “Assets/UI/Documents/Empty.uxml” Observe the result in the Console of the Unity editor Actual result: Error "SelectorAccelerationCache: Assets/UI/Styles/Unknown.uss / 22122:132272389 association already exists" is thro…
Retrieved 2026-11-10Fixed a crash in NativeSelectorMatcher when a StyleSheet asset containing a malformed style value was deleted while a VisualElement still referenced it.
Fixed a crash when a UXML file instantiates a template that instantiates it back.
Fixed a custom cursor image flickering or reverting to the default cursor when hovering UI in the UI Viewport preview.
Fixed a duplicated element being given the same authoring ID as the original, which caused an error when the UXML file was reimported.
Fixed a dynamic height ListView leaving the last row unreachable after reordering a row to the end of a scrolled list.
Fixed a localization table file being read as an empty table without an error when its member names didn't match the expected casing.
Fixed a localization table file written by a newer version of Unity being read as if it were the current format.
Fixed a localized asset never being released when its type does not match the requested type.
Fixed a localized asset shared by two table entries being released only once, so every extra entry leaked a reference.
Fixed a memory leak that grew every frame for elements using the -unity-material style and ended in an OutOfMemoryException.
Linked bug report
UUM-150318: Memory leak and silent crash when idle in Play Mode in a scene with multiple UI Toolkit GameObjects
How to reproduce: 1. Open the attached “IN-149943” project 2. Open the “Test“ scene 3. Stay idle for ~30 minutes 4. Observe the memory leak in the console window / crash Reproducible with: 6000.5.0a4, 6000.5.10f1, 6000.6.0b10, 6000.7.0a5 Could not test with: 6000.0.81f1, 6000.3.22f1, 6000.5.0a3 (UI ToolKit GameObjects are removed from the scene when downgrading) Reproduced on: Windows 11 Not r…
Retrieved 2026-11-10Fixed a NullReferenceException in the Inspector when saving a UI Toolkit element animation while the Animation window is in Preview mode.
Linked bug report
UUM-155268: NullReferenceException is thrown when saving a UI Toolkit element animation with Animation window Preview enabled
How to reproduce: Open the attached “IN-154909” project Open the “Sample Scene” scene In the Hierarchy tab, expand “PlayerHUD” > “#Header” > “#HeaderLeft” and select the “#SpinCoinIcon” VisualElement Open the “Animation” window (Ctrl + 6) In the top bar of the “Animation” window near the record button, enable “Preview” mode In the left part of the “Animation” window, expand “Background Image” …
Retrieved 2026-11-10Fixed a NullReferenceException thrown when pasting in the UI Builder Viewport after cutting an element and then deleting it.
Fixed a NullReferenceException when a z-index child inside an element rendered through a render texture had an ancestor whose scale changed from 1.
Fixed a removed localization key still being returned by SharedTableData.GetEntry and GetKey when two entries used the same key.
Fixed a Smart Strings Variables Group asset entry offering no way to choose its variable type in the Inspector.
Fixed a spurious assertion error being logged in the Console when using Create Template in UI Builder on an element created via GameObject > UI Toolkit > Standard Elements.
Fixed a style sheet losing its priority when used directly after also being imported by a theme style sheet.
Fixed a transient GameObject Hierarchy entry appearing during a ListView drag (Simple reorder mode) with UI Toolkit Hierarchy Integration enabled.
Fixed a UI animation clip assigned with the animation-name USS property starting one frame later than the same clip assigned from a script.
Fixed a USS file importing with no rules when one of its declarations has an empty value.
Fixed a VisualElement with the DynamicTransform usage hint remaining invisible until hovered after an ancestor's scale animated up from zero, when another ancestor used the GroupTransform usage hint.
Linked bug report
UUM-140869: VisualElement with DynamicTransform and animated scale from 0 is not rendered until hovered when parent uses GroupTransform
How to reproduce: 1. Open the attached “IN-140824” project 2. Open the “TestScale” scene 3. Enter Play mode 4. Click the “Toggle Window” button in Game view 5. Notice Visual Element block with “usage-hint = None” text 6. Hover mouse cursor above the said Visual element 7. Observe the Game view Actual result: “usage-hints = DynamicTransform” text appears on a Visual Element after the mouse is h…
Retrieved 2026-11-09Fixed a warning about two settings providers named Project/Localization when the Localization package was installed.
Fixed a World Space UIDocument logging "Cannot destroy Component while GameObject is being activated or deactivated." when its Scene was closed, which also made Player builds started from the Editor fail.
Fixed an ArgumentException when pasting a cut element with one of its children selected in the UI Viewport or the Hierarchy.
Fixed an ArgumentOutOfRangeException when setting a variable on the Background Image field in the UI Builder Inspector while the Gradient type was selected.
Fixed an assertion error being thrown when unparenting an element that was its parent's only child.
Fixed an element rendering flat instead of conforming to its curved ancestor when -unity-curvature was set to StyleKeyword.Initial from a script.
Fixed an element with a z-index inside a filtered element sometimes skipping an update when one of its ancestors changed in the same frame.
Fixed an error logged to the Console when selecting Two Pane Split View in the UI Library window with the Inspector tab enabled.
Linked bug report
UUM-149144: TwoPaneSplitView needs exactly 2 children error is thrown if TwoPaneSplitView element is selected in the UI Library window while Inspector tab is enabled
Steps to reproduce: Open the attached project Open the UI Library window (Window -> UI Toolkit -> UI Library) Enable the Inspector tab in the UI Library window Select the Two Pane Split View element Observe the Console window Actual results: "TwoPaneSplitView needs exactly 2 children." error is thrown each time the element is selected Expected results: No warning or errors are thrown when sele…
Retrieved 2026-11-10Fixed an error that was logged every time styles were resolved on an element with an unrecognized -unity-curvature value.
Fixed an exception thrown when submitting a syntactically invalid selector in the Add new selector field of the UI Builder StyleSheets pane.
Fixed an exception when a localized value was read before LocalizationSettings.InitializeAsync in a project that defers initialization and prefers synchronous loading.
Fixed an extra "Element N" foldout that showed under each component in the UI Builder Inspector and could not be collapsed.
Fixed an invalid -unity-curvature declaration being applied as an explicit 0deg 0deg value that stopped the element's subtree from conforming to a curved ancestor, instead of falling back to none.
Fixed an InvalidCastException thrown every frame when a UI animation key for the cursor image, material or font referenced an object of the wrong type.
Fixed an InvalidOperationException in UI Builder when grid rows or columns mix minmax() with other track sizes.
Fixed an issue where a TextField displayed a replacement character when Max Length cut the text in the middle of an emoji.
Linked bug report
UUM-155098: Emoji is displayed with a replacement character in a TextField when Max Length cuts the text in the middle of the emoji
Reproduction steps: 1. Create a new project 2. Create > UI Toolkit > UI Document 3. Double-click the newly created Asset to open the UI Builder window 4. Drag and drop a TextField Element into the Hierarchy 5. Select the TextField and set Max Length field to 3 in the Inspector 6. Set Value field to two emojis (e.g. "😀😀") 7. Observe the TextField in the Viewport Actual result: TextField displ…
Retrieved 2026-11-10Fixed an issue where a UI Toolkit scheduled callback that threw an exception repeated every frame and prevented all other scheduled items in the panel from running.
Fixed an issue where clicking Save in the "UI Assets Have Been Modified" dialog did not save changes to a UXML document when a template it uses was also modified.
Fixed an issue where elements dragged onto a Scroll View in the Hierarchy window were not selected or shown at their new location inside the Scroll View's content container.
Fixed an issue where exiting Play mode showed the "UI Assets Have Been Modified" prompt for UI Document and style sheet edits made in the Main Stage before entering Play mode.
Fixed an issue where exiting Prefab Mode brought the Scene view tab to the front, even when another tab was in front in the same tab group.
Fixed an issue where Scene View picking was not restricted to a UXML document's own content while it was open for in-scene UI staging, allowing unrelated GameObjects to be selected and edited.
Fixed an issue where selecting an element while staging a nested UXML template also selected that element in every other scene instance of the same template.
Fixed an issue where undoing the deletion of a selector in the Style Sheets window restored it at the wrong position.
Linked bug report
UUM-149380: Selector is restored in a different position when undoing its deletion in the in-context Style Sheets window
Steps to reproduce: Create a new Unity project using the Universal 3D template Right-click in the Hierarchy > UI Toolkit > Standard Elements >Visual Element Add a StyleSheet to the document and create several selectors in it (e.g. "a", "b", "c") Select a selector that is not the last in the list and delete it Press Ctrl+Z Observe the selector's position in the Style Sheets window Actual result…
Retrieved 2026-11-10Fixed animation-duration and animation-delay using seconds instead of milliseconds when their value comes from a custom property through var().
Fixed ArgumentOutOfRangeException being thrown on every style resolution when a USS declaration had a malformed filter or backdrop-filter value.
Fixed attribute fields in the UI Toolkit Debugger being read-only.
Fixed blurred text and content in elements with a filter, such as drop-shadow, when the panel scale is not a whole number.
Linked bug report
UUM-155009: Text is blurred in UI Toolkit when applying Drop Shadow filter
How to reproduce: Open the “IN-155178” project Open the “Assets/Scenes/SampleScene.unity” scene Observe Game view (enter Play mode if needed) Actual result: The text on the panel where the Drop Shadow filter is applied is slightly blurred Expected result: No text is blurred, as the Drop Shadow filter should only add a shadow to the element it is applied to Reproducible with: 6000.6.0a6, 6000.6…
Retrieved 2026-11-10Fixed continuous RenderTexture.Create errors and black Editor window flickering when zooming in the UI Viewport or UI Builder on an element with a backdrop filter.
Linked bug report
UUM-149927: "RenderTexture.Create failed: requested size is too large" errors are thrown continuously and Editor windows flicker black when zooming in the UI Viewport with a Backdrop Filter applied
Reproduction steps: 1. Create a new project 2. Create any Standard Element (e.g. GameObject > UI Toolkit > Standard Elements > Label) and save UXML file 3. Select the Standard Element in the Hierarchy and add any Backdrop Filter in the Inspector 4. Zoom in in the UI Viewport 5. Observe the Console and the Editor windows Actual result: "RenderTexture.Create failed: requested size (47548, 1995) …
Retrieved 2026-11-10Fixed Create Template duplicating an element's name onto both the new TemplateContainer instance and the extracted template's root element, so a "#name" selector or query no longer matches two nested elements.
Fixed deleting an element's name in the Hierarchy leaving the old name in place.
Fixed destroying a Panel Renderer leaving its focus ring holding the root visual element, which kept that element alive.
Fixed different localization table collections being assigned identical entry key IDs.
Fixed elements with a 3D rotation or Z offset disappearing on overlay panels when they are rendered through a dynamic or group transform.
Fixed elements with the GroupTransform usage hint, such as a ScrollView content container, rendering at the wrong position and logging an assertion after an ancestor's scale changed from 1.
Fixed errors in the Console when animating a UI Document component's Pivot Reference Size, Pivot, Position or Size Mode property. These properties are no longer offered in the Animation window.
Linked bug report
UUM-148476: “NullReferenceException” and "invalid enum value" errors are thrown in the Console when animating the Pivot Reference Size property of a UI Document in the Animation window
Steps to reproduce: 1. Create new Unity project using Universal 3D Template 2. In Hierarchy window create Empty GameObject and select it 3. In Inspector window add UI Document and Animation Components 4. Add/create new Source Asset and Panel Settings for UI Document Component 5. Open Animation window 6. Create Animation Clip for GameObject 7. Add Pivot Reference Size Property 8. Enable keyfram…
Retrieved 2026-11-10Fixed extra draw calls after many elements with children were made visible again.
Fixed Foldout tooltips being displayed at the bottom of the section instead of under its header.
Linked bug report
UUM-145747: Section tooltips appear at the bottom of it resulting in the visual Tooltip jumps
How to reproduce: 1. Create a new Unity project and install the Multiplayer Services package 2. In the Project window, right-click -> Create -> Services -> Multiplayer -> Multiplayer Session 3. In the Inspector, expand the Session Player Events 4. Hover on the sub-sections and between them and observe the tooltips Expected results: All tooltips appear where the cursor is hovered Actual results…
Retrieved 2026-11-09Fixed grid items ignoring their relative left, top, right and bottom offsets.
Fixed import errors when a UXML or USS asset references a built-in resource.
Fixed IndexOutOfRangeException errors being thrown when redoing actions after changing an element's background colour in UI Builder.
Linked bug report
UUM-149395: "IndexOutOfRangeException" errors are thrown when redoing actions after changing Element's Background color
Reproduction steps: 1. Create a new project 2. Create > UI Toolkit > UI Document 3. Double-click the newly created Asset to open UI Builder window 4. Drag and drop any Element into the Hierarchy (e.g. Button Element) 5. Select the newly added Element and change its Background color in the Inspector 6. Duplicate the Element 7. Undo all changes 8. Redo all changes 9. Observe the Console Actual r…
Retrieved 2026-11-10Fixed instable UGUIEventSystemTests on WindowsEditor.
Fixed link tag events reporting "test" as linkText instead of the link's text when using the Advanced Text Generator.
Fixed Localized String and Localized Asset fields in the Inspector still showing the old reference after resetting the component.