I'm experiencing this issue for at least a month now as well. I was watching this issue and hoping for a solution.
In my case Firebase shows thousands of crashes related to CoreData or CoreFoundation on one of the following:
"PFObjectIDFastHash64"
"-[NSManagedObjectContextdisposeObjects:count:notifyParent:]"
"CFBasicHashRemoveValue"
It's only iOS 14 and although I don't know how reliable the data is, but the majority seems to be on iPhone.
I'm not able to reproduce it and haven't heard any significant complaints from our helpdesk either.
wscheper
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Not sure if that error code catches all errors of that type. As a quick fix were now showing an activity indicator and are postponing any error messages for +- 20 secs. This gives us time to keep the error message away from the user, when in that time a purchase was successful after all. Still not the best solution.
Same issue, although only versions < iOS 15.0 seem to be affected.