I was experiencing the same issue. I found it to be caused by this line:
@SceneStorage("selectedItem") var selectedItem: String?
Removing it allowed the preview to show again.
Hope this helps.
krames
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for
From
St. Louis, MO, United States
Post
Replies
Boosts
Views
Activity
Same for me - 16" MBP
Popovers are meant to be shown as sheets on iPhone. If you run the app on an iPad or a Mac if its a universal app, you will see it display as a small overlay as the name suggests. Hope this helps.
Same problem here. Threads on other sites suggest it's a drive space issue but I have over 200gb free. This is very frustrating. Same result with other versions of iOS. Next I am going to try to download an Xcode beta version to see if it works.