UUM-155032

Fixed in 6000.7.0b4

Mentioned in 6 Unity 6 release notes.

First fixed in 6000.7.0b4 (Oct 8, 2026); relisted in 5 later releases.

All (13)Unity 7 (7)Unity 6 (6)
Open on Unity Issue Tracker
VersionSectionRiskImpactNote
6000.7.0b8Fixes
UI Toolkit
FixFixed "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.
6000.7.0b7Fixes
UI Toolkit
FixFixed "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.
6000.7.0b6Fixes
UI Toolkit
FixFixed "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.
6000.7.0b5Fixes
UI Toolkit
FixFixed "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.
6000.7.0b4Fixes
UI Toolkit
FixFixed "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.
6000.7.0b4Fixes
UI Toolkit
FixFixed "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.

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