Man what a bummer… The only thing left I can think of is to post your problem on the signal forum support page. There are more experienced people there. Good luck! c:

Maybe you can try adding them on Signal Desktop? And also the other person could try adding you on Signal Desktop

https://support.torproject.org/tor-browser/security/tor-browser-for-android-no-trackers/

The trackers detected are:

• Glean (Mozilla telemetry service)
• Sentry

You can inspect them in App Manager if you have root, and disable the specific activities and providers from the app if you care about this.

mouth-breather

This reminds me of https://lemmy.world/post/40791326