Issues sending texts and starting group chats??
I've just replaced my Galaxy S8 Active with a Note20, but on both phones I have had the issue that I cannot send text messages to a particular set of people, send messages to phone numbers I have not texted before, nor can I start a group chat. When I try to do these things, I will type out the message and press send, then the app will back out to the screen with all of my messages. The message will not send, nor will it show that the message failed to send. I'm not sure where in the universe it's going but it is definitely not to the recipient. I've replaced the SIM card TWICE, once myself and once at the ATT store with a technician, but to no avail. Any solutions short of replacing the entire NEW phone (literally less than 2 weeks old)?
NOTE: I did not have these issues with my previous phone until a particular system update, I have also not met anyone that also has these issues.