Thanks for the information @Arxos! Unfortunately, this is a brand new experience I need, and I don't have any others on the account I can edit right now. Am going to try to edit the one that seems to be stuck and see if that helps though. I checked the JSON as well, and you're correct. It shows as published, but the app clips aren't working in iMessage or in the Link Presentation Framework. Hopefully Apple fixes this or responds to this soon. It has been broken since early December for me :(

it has been over a month at this point.