I have the same problem. In my case UIPasteButton is inside the collection view cell and it disappears sometimes (and sometimes it works fine). I try to make it static, re-assign target, recreate when cell appears, but haven’t found 100% working solution. Need help from Apple engineers
iJustCrazy
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Have the same issue. I removed everything from the previous account, but still can't create App Group with an old identifier. Waiting for support to help me out.