Search Issue Tracker


Under Consideration for 2022.3.X



Found in



Issue ID




Crash on UnityEditor.AssetDatabase:OpenAsset because assertion fails on prefabInstance.GetRootGameObject().IsValid() expression while opening a specific Scene



Reproduction steps:
1. Open the attached "crash_IN-69862" project
2. Open the "3" Scene
3. Observe the crash

Reproduced with: 2022.2.0a13, 2022.3.21f1, 2023.2.13f1, 2023.3.0b3
Not reproduced with: 2021.3.37f1, 2022.2.0a12, 2023.3.0b11
Fixed in: 2023.3.0b4

Reproduced on: Windows 10 (22H2)
Not reproduced on: No other environments tested

* The crash is produced by the "\Assets\=== ASSETS ===\Dark_Fantasy\Assets\Prefabs_Grp\BASIC\Floor\Floor_x4_Lod0.prefab"
* The “3“ Scene opens without a crash if the "\Assets\=== ASSETS ===\Dark_Fantasy\Assets\Prefabs_Grp\BASIC\Floor\” folder is empty
* For quite some time I was able to reproduce the crash by having the "\Assets\=== ASSETS ===\Dark_Fantasy\Assets\Prefabs_Grp\BASIC\Floor\” folder empty, opening the “3“ Scene and then importing the “Floor_x4_Lod0.prefab“ into the “\Floor\“ folder. However, crash suddenly became non-reproducible by following this method
* The crash can be sometimes reproduced by importing the "Floor_x4_Lod0.prefab" into the "\Floor\" folder before entering the "3" Scene
* Moving the "Floor_x4_Lod0.prefab" out of the "\Floor" folder and then entering the "3" Scene doesn't reproduce the crash

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.