I had the same problem with the Telegram app, it wasn't starting, I just got blank screen after running the app.
Michael suggested looking for .lock files... turns out I had .config/com.ubuntu.telegram/<number>/auth.lock
after removing that file Telegram app works again :)
I had the same problem with the Telegram app, it wasn't starting, I just got blank screen after running the app.
Michael suggested looking for .lock files... com.ubuntu. telegram/ <number> /auth.lock
turns out I had .config/
after removing that file Telegram app works again :)