Empty Widget on iOS 14 simulator

I am having an issue when running iOS 14 simulator, some widgets like Calendar are presented as an empty, white box. Does this happen to someone or just me?

imgur.com/a/LskqBS5
Me too, it also happen with my own widget, I don't know why :(
imgur.com/IaudSLR
Same here
Empty Widget on iOS 14 simulator
 
 
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