thanks for the list - I guess adb logcat or logfox could show what exact url the notification is generated for. “notifyException” is a long function that will even do supressions(!) for a UnauthorizedException if coming from google (not fully understood though?).
I guess either such a supression could make sense for other accountTypes too, it’s a classification error inside accountmanager / davx5 - or the cause is entirely different.
