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Won't Fix
Votes
0
Found in
2020.1.0a5
2020.3.22f1
2021.2
2022.1
Issue ID
1382181
Regression
Yes
ArgumentException from hierarchyWindowItemOnGUI is thrown when leaving Prefab Mode
How to reproduce:
1. Open the user attached "HierarchyWindowItemOnGUI.zip" project
2. Enter the "SampleScene" Scene
3. Open the "Prefab" Prefab in the Assets folder
4. Exit the Prefab Mode by pressing the back arrow in the Hierarchy
5. Open the Console
Expected result: No errors
Actual result: An error is thrown
Reproducible with: 2020.1.0a5, 2020.3.24f1, 2021.2.5f1, 2022.1.0a16
Not reproducible 2019.4.33f1, 2020.1.0a4
Notes:
- Error "ArgumentException: Getting control 1's position in a group with only 1 controls when doing repaint"
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Resolution Note:
Using GUILayout methods is not supported from the hierarchyWindowItemOnGUI callback due to the culling logic of the Hierarchy Tree View. That is why the row rect is provided as input. Please calculate rects for row widgets using this input rect.
This information will be added to the documentation for hierarchyWindowItemOnGUI.