I just switched back over to verizon from at&t. I used the same phone which originally came from verizon. When I made the switch I am having issues with group chats that I use for work. I use a Galaxy S8 and use the default messaging app. In some group chats I am able to receive messages but unable to send, but in other group chats I recieve only some of the messages sent but I can reply in the chat.
