06-22-2020, 11:02 PM
I'm still puzzled by your issue. If you only use the WebUI for settings, the Config pages don't load the playlist. It's only loaded into Browser memory when on the Library or Playback panels. If you then close the Browser nothing is in memory anymore.
I'd suggest posting the issue to the maintainer of the 3rd party MPD client app.
I'd suggest posting the issue to the maintainer of the 3rd party MPD client app.