UUM-155877

Fixed in 6000.7.0b7

Mentioned in 4 Unity 6 release notes.

First fixed in 6000.7.0b7 (Oct 29, 2026); relisted in 3 later releases.

All (9)Unity 7 (5)Unity 6 (4)
Open on Unity Issue Tracker
VersionSectionRiskImpactNote
6000.7.0b8Fixes
Terrain
FixFixed terrain painting being lost without any message when a new TerrainData was saved with AssetDatabase.CreateAsset after its terrain layers were assigned. A warning now explains the loss and how to avoid it.
6000.6.8f1Fixes
Terrain
FixFixed terrain painting being lost without any message when a new TerrainData was saved with AssetDatabase.CreateAsset after its terrain layers were assigned. A warning now explains the loss and how to avoid it.
6000.7.0b7Fixes
Terrain
FixFixed terrain painting being lost without any message when a new TerrainData was saved with AssetDatabase.CreateAsset after its terrain layers were assigned. A warning now explains the loss and how to avoid it.
6000.7.0b7Fixes
Terrain
FixFixed terrain painting being lost without any message when a new TerrainData was saved with AssetDatabase.CreateAsset after its terrain layers were assigned. A warning now explains the loss and how to avoid it.

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