Searched and haven’t seen this thread reappear in the lest year or so, even though it’s still an issue.
Let’s say you have a file that’s actually 2 or 3 episodes combined (ie My_Show S01E15-E16). When you get to episode 15, either directly or by auto-play from ep. 14 or by having it queued up in On Deck, then it obviously will play both 15 and 16 because it’s all a single video file. After watching, it correctly marks episode 15 and episode 16 as watched. And if you were then to go to On Deck, it correctly queues up ep. 17. However, if you just let auto-play continue, it tries to play episode 16 next.
So when you have a file that represents multiple episodes, I’d want auto-play afterwards to skip to the next episode that’s not part of that file.
I’ve experienced this recently on my Samsung and roku and I know others have suffered this.