Similar issues.
It seems that it is currently only happening on the iOS18 system.
I even give each INPersonHandle a unique value (like [[INPersonHandle alloc] initWithValue:userId type:INPersonHandleTypeUnknown];)to ensure that it could match to only one avatar, but APNS avatars still mess up between my different users, event between different apps.
By the way, it occurs irregularly
Laval66
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution