I have a Galaxy s20. I've had the same carrier for years. Recently I went on a trip and bought an esim card. I am now back in the States and have swapped back over to my original Sim card. Now Google messages is saying it cannot turn on RCS chats because it's not supported? Is there some setting that I need to go figure out how to undo? I don't think I changed much by going to the east soon. Manually anyway. Can anyone help?