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Fixed in Unity 5.5.0



Found in


Issue ID




Scene is permanently corrupted after copying canvas element

Editor - Other



Priority: 2Necessary for shipping a final release


Severity: 1Crash, freeze, data loss, work stops

Steps to reproduce:
1. open User's attached project
2. open scene "Main Scene"
3. from Hierarchy go to Canvas > Panel
4. copy and paste a few "Copy Me!" objects
5. save scene
6. Enter Play mode. Notice: Unity crashes at CalculateGlobalRotation
7. Try to open the same project once again

Result: Can't open the scene or project - crash window appears. Scene is corrupted.

Reproduced with: 5.5.0a6, 5.4.0p2.
Failed to reproduce with: 5.2.5f1, 5.3.6p2.

-if no copy of "Copy Me!" object is created, Unity doesn't crash

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