Ohmy. Because of #Signal being unable to properly support multiple accounts on one (multi-sim) device, I am running a clone of the signal app using an "App Cloner" tool for Android. Works nicely, I just got two different signal installs, one private, one work.
Recently someone introduced me to the tool #Shelterhttps://github.com/PeterCxy/Shelter which let's one use the "Work Profile" ability on Android and allows one to clone apps (or install them there again) inside it. Nice tool, like it, clear separation of areas, and one click can turn off the whole work profile. And shelter makes this easy to use.
Except. With #signal. No idea why, or how, but as soon as I transfer my account (using a backup) into the Work profile signal - it stops working. For everyone I am connected with. That is, groups simply do not let ANYONE send or receive anything. Messages from me to anyone do not pass and vice versa do not pass.
Transfer account back to the other clone - and hey, it all works again. Repeatable.