UUM-155593

Fixed in 7000.0.0a8

Mentioned in 8 release notes.

First fixed in 7000.0.0a8 (Oct 8, 2026); relisted in 7 later releases.

All (8)Unity 7 (7)Unity 6 (1)
Open on Unity Issue Tracker
VersionSectionRiskImpactNote
7000.0.0a16Fixes
Scene Manager
FixFixed a performance regression in the Editor where reordering many sibling GameObjects increased frame time.
7000.0.0a12Fixes
Scene Manager
FixFixed a performance regression in the Editor where reordering many sibling GameObjects increased frame time.
6000.7.0b6Fixes
Scene Manager
FixFixed a performance regression in the Editor where reordering many sibling GameObjects increased frame time. (UUM-155593) First seen in 6000.7.0a3.
7000.0.0a11Fixes
Scene Manager
FixFixed a performance regression in the Editor where reordering many sibling GameObjects increased frame time.
7000.0.0a10Fixes
Scene Manager
FixFixed a performance regression in the Editor where reordering many sibling GameObjects increased frame time.
7000.0.0a9Fixes
Scene Manager
FixFixed a performance regression in the Editor where reordering many sibling GameObjects increased frame time.
7000.0.0a8Fixes
Scene Manager
FixFixed a performance regression in the Editor where reordering many sibling GameObjects increased frame time.
7000.0.0a8Fixes
Scene Manager
FixFixed a performance regression in the Editor where reordering many sibling GameObjects increased frame time.

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