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Won't Fix
Votes
0
Found in
2018.3.0b2
2018.3.0b10
2019.1.0a1
Issue ID
1101897
Regression
Yes
All Instances of different prefabs disappear from the scene when one of them is edited
Steps to reproduce:
1. Open users attached project
2. In Hierarchy window expand GameObject "Root" and then expand GameObject "Battle"
3. Select Skillbutton Instance of prefab
4. In Inspector window press Open
5. In the Hierarchy window press little arrow on to close Prefab edit mode
6. If the bug didn't appear repeat steps from 5 to 7 until bug appears
Expected results: No changes can be seen in Hierarchy window after Prefab is edited
Actual results: All Instances of different prefabs are deleted from the scene and error "GameObject not correctly marked as PreviewScene object:" is thrown
Reproducible with: 2018.3.0b2, 2018.3.0f2, 2019.1.0a11
Not reproducible with: 2018.3.0a6, 2018.3.0b1
Notes: Improved prefabs appeared in 2018.3.0a6. After the instances of prefabs disappear, GameObject of the edited Prefab is created in the Hierarchy.
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Resolution Note (2019.1.X):
This is an issue with the NGUI extension. NGUI does not yet properly support Prefab Mode. NGUI looks for Root and finds it in the main scene and reparents the opened prefab root to the Root in the main scene.