UUM-155134

Fixed in 7000.0.0a11

Mentioned in 5 release notes.

First fixed in 7000.0.0a11 (Oct 20, 2026); relisted in 4 later releases.

All (5)Unity 7 (4)Unity 6 (1)
Open on Unity Issue Tracker
VersionSectionRiskImpactNote
7000.0.0a16Fixes
Prefabs
FixFixed a performance regression when saving scenes that contain prefab instances with many overrides.
6000.7.0b7Fixes
Prefabs
FixFixed a performance regression when saving scenes that contain prefab instances with many overrides. (UUM-155134) First seen in 6000.7.0a4.
7000.0.0a12Fixes
Prefabs
FixFixed a performance regression when saving scenes that contain prefab instances with many overrides.
7000.0.0a11Fixes
Prefabs
FixFixed a performance regression when saving scenes that contain prefab instances with many overrides.
7000.0.0a11Fixes
Prefabs
FixFixed a performance regression when saving scenes that contain prefab instances with many overrides.

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