I have an S21 Ultra. No issues for a year but starting last week, I won't receive any text messages for like 6 hrs to as much as 30 hrs. I can send just fine but won't know I'm not receiving messages until I suddenly get like 40 all at once. I didn't change settings when this started happening. And it happens about 3 times/week. I've tried clearing message cache and data but hasn't worked. I'm using the Messages app with the blue icon with 3 dots in the middle. Help! I keep missing important messages from daycare, my employees, etc!
