RCS Chat no longer works on my T-Mobile S22 Ultra. Checked help center, no solution to any of my issues. This clearly has to be an interoperability issue with RCS through T-Mobile and RCS through Jibe. My RCS worked fine when I used this app through Jibe, but it doesn't work now that I have my new S22 Ultra and RCS runs through T-Mobile. Can't use this app until they fix it, as my messages need to actually be delivered to my contacts when I send them.