Safely9659 Seems like GrapheneOS broke it somehow.
Maybe so, but meanwhile Google is definitely rolling out changes to Google Messages, some of which appear to be designed to make verification harder to spoof.
Safely9659 Hoping for a reliable workaround or patch soon.
That would be great, and I'm sure the GrapheneOS developers would like to do that... but as long as the situation is that carriers are outsourcing RCS to Google Jibe it may not be possible for anybody to provide RCS on devices that Google wants to reject.
That said, apparently some carriers are shifting back to doing RCS themselves (source). And apparently that is resulting in instability for some users too!
Basically, I think the overall RCS ecosystem is in upheaval right now. That may not be something that the GrapheneOS developers can fix.