Ui doesn't update until end of sub or function

Hi,

I am sorry for my fault! You can try to marshal the call to the UI thread with Dispatcher.RunAsync:

Await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, Function() 

button.Visibility = Windows.UI.Xaml.Visibility.Collapsed

End Function)
Await funWaitingForopponent()

Best Wishes!

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