Just an FYI, I’ve been updating my Zen8 to version 1.14 recently and I dont have any issues sending / receiving SMS to Android or IPhones with the /e/OS built in SMS App.
I’m having a similar problem with my Teracube 2e. I use the native text messaging app and can sometimes send messages without a hitch. But recently, both before and after the latest system update to 1.14.2, I get a “failed to send, tap to try again” notification. This happens in ongoing threads, where I was actively texting someone without issue just moments before. If I restart the phone, I can sometimes copy and paste the content to a new message and send it, but this doesn’t always work. Today when it happened, I tried clearing the cache for the app and then rebooting. That worked once but not the next time. Any ideas what’s going on and how to fix it?