Stack trace:
0x00007ff64606ea50 (Unity) GameObjectHierarchyProperty::GetColorCode
0x00007ff64659496d (Unity) HierarchyProperty_Get_Custom_PropColorCode
0x00000287c873bd80 (Mono JIT Code) (wrapper managed-to-native) UnityEditor.HierarchyProperty:get_colorCode (UnityEditor.HierarchyProperty)
0x00000287c873b6fb (Mono JIT Code) UnityEditor.GameObjectTreeViewDataSource:InitTreeViewItem (UnityEditor.GameObjectTreeViewItem,UnityEditor.HierarchyProperty,bool,int)
0x00000287c873af8b (Mono JIT Code) UnityEditor.GameObjectTreeViewDataSource:InitializeRows (UnityEditor.HierarchyProperty,int,int)
0x00000287c8739ad3 (Mono JIT Code) UnityEditor.GameObjectTreeViewDataSource:InitializeMinimal ()
0x00000287c8737123 (Mono JIT Code) UnityEditor.GameObjectTreeViewDataSource:FetchData ()
0x00000287c8736d03 (Mono JIT Code) UnityEditor.IMGUI.Controls.TreeViewDataSource:ReloadData ()
0x00000287c8736c36 (Mono JIT Code) UnityEditor.IMGUI.Controls.TreeViewController:ReloadData ()
0x00000287c9c2b36b (Mono JIT Code) UnityEditor.SceneHierarchy:ReloadData ()
0x00000287c9c2b133 (Mono JIT Code) UnityEditor.SceneHierarchy:SyncIfNeeded ()
0x00000287c9c2abab (Mono JIT Code) UnityEditor.SceneHierarchy:OnGUI (UnityEngine.Rect)
0x00000287c9c2aaab (Mono JIT Code) UnityEditor.SceneHierarchyWindow:DoSceneHierarchy ()
0x00000287c9c2402b (Mono JIT Code) UnityEditor.SceneHierarchyWindow:OnGUI ()
0x00000287c9c22b43 (Mono JIT Code) UnityEditor.HostView:InvokeOnGUI (UnityEngine.Rect,UnityEngine.Rect)
0x00000287c9c228b3 (Mono JIT Code) UnityEditor.DockArea:DrawView (UnityEngine.Rect,UnityEngine.Rect)
0x00000287c9c14e23 (Mono JIT Code) UnityEditor.DockArea:OldOnGUI ()