So I have RCS working with most android contacts but the one I want to work the most, of course, does not. My wife's s21 has RCS enabled but we don't have RCS features working between us. Does anyone have any ideas what to check? She had said there was some sort of statement about lack of encryption for me within her messaging settings. Unfortunately I don't have her phone with me but if anyone can give me some ideas of what to check later, that would be great. Thanks!