Can you please take logs when that happens? I cannot investigate it as I'm not able to reproduce the issue myself.
OK the "Chat features" is actually RCS from the carrier. If you have connection issues with RCS, it's likely something on the carrier side.Now I was speaking with a friend and he said that he had the same problem and by disabling chat features I think it's working well now. I noticed that the chat features were setting up and now it appears as connected if I reenable. I will wait sometime to see if it will happen again or if it's really solved. If I see that the problem is not solved do you know any apk to make the log without using the computer because it only happens once a while?