Dmitry

To show how many files there are they need to be counted first which may take a lot of time (because SAF needs to be used). So I guess the...

That's waaaay to much work and I will need to bundle ffmpeg which will increase the app size by 50 megabytes.

There should be a different bottom menu with actions. But for some reason it didn't appear for you and I wonder why.

Do you have animations enabled in the OS settings?

By external sound you mean sound posts? If yes then it was never implemented because it's kinda hard to do with mpv.

Restart the app and it will reset the timer.

Actually this was implemented in one of the recent version. Long tap the reply button and you will see a new option to uncheck.

Works for me.

Aren't there other apps out there that can do this job?

Maybe because of the history? "Restore last visited catalog upon app start" option in the drawer.