Whatever you did with the last update took away my RCS ability. I've checked both the receiving and sending phone (vice versa) and it's not us, the settings are different instead of encryption it offers "chat". If you're trying to get away from sms/mms but still have it in the chat feature, maybe that's the problem. I'm not a developer! Why not put RCS as a separate feature or app as well w/o a sms/mms option. Those who don't want it will download alternatives like us, if this isn't fixed