identifierForVendor changes on reinstall

Question

identifierForVendor is not supposed to change on reinstall of app:

The value in this property remains the same while the app (or anot

Answer 1

It's a known bug. It seems like Apple made an update to AppStore that causes this new behavior for identifierForVendor around the 28:th May. If you search in the App Developer forum, there are other developers reporting the same problem.

The signature gc from Apple have replied on the issue with the following answer: "Please file bug reports on this at https://developer.apple.com/bug-reporting>. We're aware of this issue and are investigating. There's no known workaround at this time."