15.1 didn't fix it for me (15.2 is out now and it hasn't fixed the issue either). My app was been running fine in iOS14, and without any changes, purchases just stopped working as people upgraded to iOS15. Everything still works fine in the iOS15 simulator, but when testing on a physical device I get the same issue as in production. Apple, please look into this and fix asap please! Thanks.
code-head
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