UserWidget cannot be an abstract class since the “Create XY Widget” returns a UserWidget Reference which I pass to all the other functions. The type of the “Active Interface” was a Widget reference and not a UserWidget reference. I do not know why. When i promotet to variable again it worked. My fault it seems.
But we miss the point here. The Lock to viewport does not work and the infinite loop makes no sense to me.
Thanks for the time !
Until tomorrow