This is a common and longstanding crash that has occurred since at least 4.15 and affected nearly 500 users.
The CrashGroup was previously linked to [Link Removed], but that had specific repro steps and was confirmed fixed in 4.17, while this callstack still continues into 4.17.1
- Was sculpting terrain
- Nothing special, just play with a blank project, and exit editor without saving anything!
- Was playing with Camera Gamma and i Couldn't play to test it said can't play in Editor while Edit W
- couldn't use "undo" as it said I can't perform that action well a move constraint is in process, but I had exited all the windows I was working on. Used the exit button on the main window and it crashed.
- I was editing the size of a vertical box in UMG. After changing the size I compiled and saved the widget. Whenever I tried to play the level I got an error "Can't play in editor while performing widget size change" or something like that. I closed out of the editor to fix this, but it crashed as I closed out.
1662 if (bNullPtr)
1664 if (Ar.IsLoading())
1666 PinRef = nullptr;
1671 UEdGraphNode* LocalOwningNode = nullptr;
1672 FGuid PinGuid;
1673 if (!Ar.IsLoading())
1676 ***** LocalOwningNode = PinRef->OwningNode;
1677 PinGuid = PinRef->PinId;