app doesn't detect connection loss

It seems when the homeserver is unavailable the app just assumes empty responses?

For example when you go to Security -> My Sessions you will just see an empty list.
Or when you sign out it'll wait a while and then remove the account from the app, while the session on the homeserver will still exist.

I assume this may be a more general problem?

Start by reproducing the behavior with the homeserver unavailable, especially under Security → My Sessions and during sign-out. Trace how unavailable responses are handled in those flows; done means connection loss is reported as an error rather than treated as an empty response or successful account removal.

Written by the indexing model from the issue text.