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Won't Fix

Votes

0

Found in

2017.4.8f1

Issue ID

1094254

Regression

No

Unity Editor crashes when entering to Play mode after applying changes to Prefab and deleting it from Hierarchy

Themes

-

To reproduce:

1. Download project "LifeClient_DailyGoals - Copy (3).zip" and open in Unity
2. Open "InitialisationScene" scene
3. Expand to Root/UGUI/Canvas/Canvas_Camera
4. Drag Panel_Goals prefab, found in the root Assets folder, to be a child of Canvas_Camera
5. Expand to Panel_Goals/Daily Pane/Goal List/EnhancedScrollView/Content
6. Child DailyGoalCell prefab, found in the root Assets folder, to Content
7. Expand DailyGoalCell and change EndLayout's Y position or something
8. Hit Apply in the inspector after making the changes with EndLayout selected
9. Delete DailyGoalCell from Hierarchy and don't save
10. Enter Play mode

Expected Result: Unity Editor successfully enters into the Play mode
Actual Result: Unity Editor crashes

Notes:
- This issue appears on both Windows and macOS
- Could not check on newer Unity versions because the project becomes corrupted
- The Stack trace and errors are shared in the Comments section

Reproduced on Unity 2017.4.0f1 and 2017.4.13f1
Could not check on Unity 2018.1.9f2, 2018.2.12f1, 2018.3.0b6 and 2019.1.0a6 because the project becomes corrupted

  1. Resolution Note (2019.1.X):

    The bug occurs because LKWDImageEditor.cs overrides the UI default material hideFlags to HideInInspector. to fix the bug simply change line from "image.defaultMaterial.hideFlags = HideFlags.HideInInspector" to "image.defaultMaterial.hideFlags |= HideFlags.HideInInspector"

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