Yesterday evening, around 8:30 Central Time, the Message + app suddenly started going off with multiple text message alerts. At first, I thought it was a group text thread, but when I checked my phone, I had over 150 new messages. There were multiple messages that I had already read that were showing up as unread, and others that I had deleted that reappeared as unread, going back over a week ago. My phone is a Galaxy S10e. Did anyone else experience this problem, or know what caused it?