I know this has been posted severe times and the problem has gone on for years with no resolution. My galaxy S22 will intermittently stop sending and receiving MMS group texts when I high volume comes in and out. This only happens when iphone users are in the group chat. 10-30 minutes later they will start downloading again. I did read at one time that Verizon can reset something on their end or the phone Eid or esim or something that worked for some people.