LG Smart TV - Settings not Saved

Plex Players Smart TVs
1

TV: SJ8500 - WEBOS 3.8.0-6114

  1. Unable to save settings on the new app. Have to login each time.
  2. Unable to return to previous app.
  3. Why do I have to login to access my local Plex server?
2

This is the same as
https://forums.plex.tv/t/automatic-sign-in-does-not-stay-selected-must-link-tv-every-time/619431/11