I've been having issues trying to text using AA on the most recent beta for S9+. Basically when I try to text someone it either stops listening completely (but still shows the bouncing balls) or says that my internet connection is not stable or reliable. I'm trying to figure out if it's AA, Google app, or beta. Since it's now baked into the beta, I can't fully uninstall and reinstall like I have before. I've uninstalled updates on both AA and Google, cleared data and cache, rebooted, etc. and nothing changes. My next step would be factory reset but I'm trying to avoid that and/or downgrading.
Please try clearing the system cache and rebooting your device.
If issue persists, please send us an error report with screenshots from One UI Beta App (Beta Feedback -> Send feedback-> Error Reports -> "Select Category" -> Input frequency and Description" -> Send (Top Right Icon). We appreciate your help for supporting beta program.
