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Fixed in 5.5.1
Votes
0
Found in
5.5.0f3
Issue ID
857037
Regression
Yes
NullRefException when undocking Asset Preview window from Inspector
Right click on the Asset Preview window in the Inspector to have it undocked. The following error message is printed in the Console:
"NullReferenceException: Object reference not set to an instance of an object
UnityEditor.PreviewWindow.CreateTracker () (at C:/buildslave/unity/build/Editor/Mono/Inspector/PreviewWindow.cs:31)
UnityEditor.InspectorWindow.OnEnable () (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:108)
UnityEditor.PreviewWindow.OnEnable () (at C:/buildslave/unity/build/Editor/Mono/Inspector/PreviewWindow.cs:18)
UnityEditor.DockArea:OnGUI()"
This does not happen in Unity 5.4, so it's a regression introduced in Unity 5.5
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