Update: resolved. On Nov 2, App Store Notices emailed to confirm the app would be returned for sale, with a note that the App Store can take 72+ hours to refresh. Same day, I had opened a case via developer.apple.com/contact (App Review → waiting to hear back), so I can’t say for sure which one moved it, but I’d recommend doing both.
Key lesson for anyone in this spot: if your Availability page header shows 0 countries while the Manage dialog shows all regions checked, and the “View” link only says to contact Developer Support, the block is on Apple’s side. Re-selecting regions won’t fix it. Thanks, jetrise, for pointing me in the right direction.
Topic:
App Store Distribution & Marketing
SubTopic:
App Review
Tags: