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Fixed
Fixed in 2022.3.16f1, 2023.2.5f1, 2023.3.0a19
Votes
0
Found in
2022.3.5f1
2023.1.4f1
2023.2.0a23
2023.3.0a1
Issue ID
UUM-42461
Regression
No
Crash on MergePrefabChanges when attempting to assign missing GameObject in Inspector
Reproduction steps (simplified, see the History for the original repro steps):
1. Create Prefab A and Prefab B
2. Open Prefab A in Prefab Mode and add Prefab B as child
3. Add a component to Prefab B (so it will be an Added Component in Prefab A)
4. Delete Prefab B from the Project folder
5. Go out of Prefab Mode, and open Prefab A again in Prefab Mode
6. Replace the missing Prefab by any Prefab
7. Observe the crash
Reproducible with: 2022.3.5f1, 2023.1.4f1, 2023.2.0a23
Could not test with: 2021.3.28f1 (Cannot perform step 4 due to error “Prefab instance problem”)
Reproduced on: Windows 10 Pro
First few lines of the stack trace:
{\{0x00007ff6d71bf48c (Unity) MergePrefabChanges }}
{\{0x00007ff6d71a18dd (Unity) MergePrefabInternal }}
{\{0x00007ff6d71a0269 (Unity) MergePrefab }}
{\{0x00007ff6d71a0586 (Unity) MergePrefabInstance }}
{{0x00007ff6d71a045c (Unity) MergePrefabInstance}}
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