Series are impossible to watch on Plex

While the Continue Watching hub might show the next episode based on your „watch progress while sleeping“, there’s many ways to deal with this, e.g.:

  • open the next episode from Continue Watching, then navigate to the previous episode(s) you had sleep-skipped
  • use the recently watched episodes hub of the tv library in question, to pick the 1st episode you don’t remember watching because you fell asleep [edit: only applies to media from your own Plex libraries… I had missed this is about Plex‘ online media sources]
  • use your profile‘s watch history to see what you watched and jump to the first episode you sleep-skipped

There’s also the option to use the Player Experience preferences to enable Passout Protection (requires a Plex Pass) or to disable auto-play in the player on-screen-menu.