Hi thanks for the suggestion! I added it for the header widget:
But the results are the same. The header is just one of the misbehaving widgets, all set the text from the value of a text property.
Strangely, this issue occurs either in the editor or in-game (or both) and seems to be related to the state of the parent widget somehow. What I mean by that is that when the header all of sudden starts to misbehave nested on one menu, it can still show up fine if that menu is nested on another UserWidget.
The trigger for the issue seems entirely random and temeporarily goes away if you hit “reload asset” on as many related UserWidgets as possible.