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Fixed in Unity 2018.2



Found in


Issue ID




Unity crash when changing prefab script from MonoBehaviour to ScriptableObject with public variables




Priority: 3Not yet prioritized for a release


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

"the file 'none' is corrupted. Remove it and launch unity again [position out of bounds!] UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)"
To reproduce:
1. Open new project, create any game object in a scene
2. Create a C# script and attach to created game object
3. Make the object a prefab by dragging it to Project window
4. Open your C# script and change class inheritance from MonoBehaviour to ScriptableObject
5. Add any kind of public variable to a mentioned script
6. Return to Unity, click the prefab in Project window if needed

Expected: Unity warns in console about possible crashes if script is not removed
Actual: Unity crashes before being able to remove the problematic script (check picture attached)

Reproduced in: 5.5.0a6, 5.5.4p4, 2017.1.1f1, 2017.2.0b10, 2017.3.0a7
Not reproduced in: 5.4.6f3
Regression starts in: 5.5.0a6

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