It seems that due to circumstances it is difficult to provide the project ...
Let me explain the situation in more detail though.
I used a spine with more than one animation in a widget in my vr project.
And to toggle the widget I used the "Set visible" used in the Unreal Blueprint.
And I used a spine with multiple animations inside by creating inventory and widget slots for items that are cleared and spawned frequently.
Crashing like this while "set visible" or "spawn" while using the widget.
There seems to be something wrong with the animation track, so putting the widget with the Spine in front of a clean track seems to cause less crashes.