Same problem here on 12.3.1 (21E258) right now, no _MASReceipt from sandbox.

Happening again

Happening here too now

Thank you, hopefully resolved soon.

Queried for an update through AppStore connect yesterday but unfortunately no response yet. At this stage I just have a reference number and that only came after 'App Review' looked into it. Any chance of getting this resolved soon? Meanwhile in addition to the app I mentioned in the appeal, I've found other apps with similar functions on the Store.

Got a response apologising that this is taking longer than expected. Meanwhile I still can't update, and offhand have found 4 others on the store, some of which were approved at the same time as ours was rejected. Merry Christmas.

Hello, just following up again.

FYI update approved overnight. Hopefully won't need to go through this again in November, which is when this tends to happen. Thanks for your help here.