UUM-155593

Fixed in 6000.7.0b6

Mentioned in 1 Unity 6 release note.

First fixed in 6000.7.0b6 (Oct 21, 2026).

All (8)Unity 7 (7)Unity 6 (1)
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VersionSectionRiskImpactNote
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.

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