Search Issue Tracker

Won't Fix



Found in




Issue ID




All Instances of different prefabs disappear from the scene when one of them is edited

Asset Import Pipeline


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.

  1. Response avatar

    Resolution Note:

    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.

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.