Thanks for pinging me.
If I understand correctly, when you watch, for example, episode 2 of a TV show, Plex also marks episode 3 as played. Is that correct?
If so, I cannot reproduce.
If I play a TV episode to the end, Plex marks it as played. It does not mark the next episode (or any other) as played.
I marked all seasons / episodes of a show as unwatched.
Using Plex 8.17.0.24942 on my Shield, I watched s01e01 to the end, and Plex queued up episode 2. I backed out to the season view. Plex marked e01 as played, but not e02. The same thing happened when I played e02 and e03.
I then played episode 6, in the middle of the season, with both e05 & e07 unplayed. Plex played e06 normally, marked it as played when finished, and queued up e07, but did not mark e07 as played.
I made a similar run through season 2 using Plex 8.16.1.24597 on my Amazon FireTV 4K with the same results.
Am I correctly understanding what you are seeing on your end?
If so, I’m not sure what would cause that to happen. I looked through library and client settings and did not see anything.
Does this happen only with the Shield - i.e. what happens if you use Plex Web?
If it also happens on other clients that would point towards the server.
If only on the Shield, you might see if there is a Plex client update available in the Google Play store app. 8.16.2 was released yesterday, and 8.17.0 is available if you’re on the beta release.
2015 Shield Pro: v8.17.0.24942
AFTV4K: v8.16.1.24597
PMS 1.23.0.4459 on Synology DS918+.