This answer helped. I can run for M1 Mac as iPad with Rosetta OFF. The rest of my workflow is with Rosetta ON.

same for iPad. Restart, unplug and replug.

it's been 5 years but perhaps you'll answer. Thanks for this old answer. Since the App is already in the App Store, I do not think I can submit the the "changed app together with the new IAPs" (the app review seems separate) ... I guess I submit the app for review and then submit the subs when the app is queued for review? Approved? Everything works in TestFlight and sandbox. I'd just like to know how this works.

No, it's about metadata. Note that you have to keep clicking unti lyou get a resubmit button after you've responded and edited your Description.

also the SE is lower resolution. Wow, this is terrible

yeah this is about right.

There's been no activity on this and no upvotes, so I wanted to mention that this IS the answer. Thanks!

However, if you are using a standard location, then clearing derived data seems to be enough.