Search Issue Tracker

Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.




Found in




Issue ID




Deleting Prefab child GameObjects doesn't update Prefab instances when working in Prefab Mode on an external data device

Asset - Database


How to reproduce:
1. Connect an external data storage device to your computer (USB flash drive, hard drive)
2. Save the attached project ( in the external data storage and open it
3. Open Prefab 'Cube' In-context Prefab Mode (click the '>' button to the right of the 'Cube' GameObject in the Hierarchy window)
4. Make sure Cube is expanded and Cube (1) and Cube (2) are displayed
5. Select Cube (2) and delete it with a keyboard command
6. As quickly as possible select Cube (1) and delete it as well
7. Make sure Cube (1) and Cube (2) got deleted
8. Go back to the SampleScene Hierarchy

Expected result: Cube and Cube (1) have no child GameObjects
Actual result: Cube and Cube (1) have child GameObjects even though the Cube Prefab does not

Reproducible with: 2020.1.0a5, 2020.1.0b9, 2020.2.0a11
Not reproducible with: 2018.4.23f1, 2019.3.14f1, 2020.1.0a3

1 This issue started with the introduction of a new Prefab workflow feature "Prefab Mode in Context". This issue doesn't occur in Prefab Isolation Mode
2. When the issue occurs the Prefab in the Project window displays that it's made of 2 Cubes even though it's made of only 1
3. The issue is not 100% reproducible as the 6th step has to be done quickly

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.