It still happens for me quite often. Most often in groups with many (500+) unread messages. The only way I managed to get them back was by clicking on a quoted message of a reply, while the quoted messages was missing, so it scrolls to a white "page" and then loads some messages near it. It happens on the iOS and the Mac client too.
It still happens for me quite often. Most often in groups with many (500+) unread messages. The only way I managed to get them back was by clicking on a quoted message of a reply, while the quoted messages was missing, so it scrolls to a white "page" and then loads some messages near it. It happens on the iOS and the Mac client too.