Read/unread problem w/ipad pro and ios 13
Recently my iPad Pro has changed hundreds of read emails back to unread. I edit, select all, then mark as read and things seem fine for a while then a few days later they will charge back to unread.
Today I received an email, clicked on it to read it. After exiting the message and mail app, it was continuing to show as unread.
I’m not certain, but this problem may have occurred on my iPhone 7 with the same iOS version.
iPad, iOS 9