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Fixed in 2021.2.X
Fixed in 2020.3.X, 2021.1.X
Votes
0
Found in
2019.4
2020.2
2020.2.6f1
2020.3
2021.1
2021.2
Issue ID
1319453
Regression
Yes
OnTransformChildrenChanged doesn't get called in the Edit mode when dragging a Prefab from the Project window to the Hierarchy
How to reproduce:
1. Open the user's attached project
2. Open Scenes > SampleScene
3. From the Assets folder drag the 'Prefab' under the Parent object in the Hierarchy
4. Observe the Console
Expected result: 'Children changed! Prefab' appears in the Console
Actual result: The Console is empty
Reproducible with: 2019.4.0f1, 2019.4.22f1, 2020.2.7f1, 2020.3.1f1, 2021.1.0b12, 2021.2.0a9
Not reproducible with: 2018.4.33f1
Notes:
- The PrintChildrenChanged.cs has the [ExecuteAlways] attribute
- The issue doesn't reproduce in the Play mode
- The issue doesn't reproduce with non-Prefab objects
- The issue doesn't reproduce in the Edit mode if the Prefab is already in the Hierarchy
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Resolution Note (fix version 2021.2):
Fixed in 2021.2.0a11
Resolution Note (fix version 2021.1):
Fixed in 2021.1.4f1
Resolution Note (fix version 2020.3):
Fixed in 2020.3.12f1