Widget configuration selection hangs

I followed the instructions here to configure a Widget with dynamic configuration:

https://developer.apple.com/documentation/widgetkit/making-a-configurable-widget

The list of items is populated correctly, but when I select an item, and dismiss the selection screen, the selection screen does go away, but the screen stays on the blurred background and the widget does not flip back around.

Has anybody seen this before? There doesn't seem to be any error occurring and there's no code being executed in either the intent handler or widget extension.
Were you ever able to solve this? I have a similar issue; however, this issue is that the list of items is never populated. I click on the “Choose” button and a progress spinner appears, but nothing ever occurs after this.
Widget configuration selection hangs
 
 
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