I use the Samsung messages app. When texting my family and friends I always get little reports next to my outgoing texts telling me if my text has been delivered to their phone, and then it also tells me if they have read my texts.
For some reason this afternoon it has stopped working for both me and my brother who both have S21's on the Tmobile network. Why is this?
When I go into the message settings all those settings are still turned on.