OK, so I signed out of that account--which was the sandbox account with the same login as my main Apple ID--and created a new one, and the app did indeed reflect that the subscription had ended. I'll check back in an hour or so and see if this sandbox user's access times out after a few five minute renewals.

OK, this is really strange. When I look at the Users and Access -> Sanbox users view in the AppStore Connect site, it shows an empty list of users, but suggests that it is showing 0 of 1 users. I'm the account owner, and I have all the permissions, so it doesn't seem to be a permissions thing. Then when I try to manage my sandbox user from my phone in Settings -> Developer, it just gives me an overlay that says "Cannot Connect" with an option to retry (doesn't work) or cancel. Any thoughts?

Thanks for the response! Will review!

While I'm waiting, I'm rolling my own navigation split view with an HStack of lists. I wanted to stick to the standard, but even if my FB is accepted, I assume it's not going to be fixed overnight.

Logged as FB15667180.

Hello, @DTS Engineer have you had a chance to look at my link, by any chance?

OK I picked through all the config files and I didn't find anything scary, so here goes: https://www.dimspace.com/Task_App_Test_Version.zip To replicate: Click all 3 starting items and see they're selectable. Type "the" in the search bar and hit return, see that all 4 items are selectable. Type "the l" in the search bar, see the list shorten, hit return, see 5 items, not all selectable. Add more new items, try selecting, maybe get a freeze. Thanks for any insight!

OK, I've built a minimal project that exhibits the issues. I'm a little embarrassed to ask because I feel like I should know, but do I just zip up the whole project and put it on a server and post a link to it? I just want to be sure that nothing private--signing certs or anything--will go out in that bundle.

I'm working on that right now.

Aaaaand it works now!

Interesting. I've done the fake leaderboard and fake achievement thing already, but I'll try again and see what happens! Thanks for the note!

Let's solve this one together! Post the link to your issue here.

Keeping hope alive here :)

The folks at Apple Support have responded to my case, and have asked me for a bunch of information, which I've provided, including a screen-capture video showing my app in xcode, the configured capabilities, the authentication code in question, the app in app store connect, and the log output when I run it on my phone. Fingers crossed, they'll see something that I missed, or find a problem on their end and fix it. I think I've done everything right, but I'd be thrilled if it's my error, because then it'll be fast to fix! Maybe they'll just say, "See that Break The Integration checkbox? Uncheck it!" We'll see! More news as events warrant. I'm optimistic.

Nothing yet, but it’s a holiday in the US, so I figure I’ll give it another day and hen maybe on Wednesday open an actual support case.