I recently started watching Mobile Ed on the Apple TV, thanks to the Faithlife TV app. (It's so much better watching the videos on a large screen, instead of on the laptop!)
Occasionally the app will skip a segment, when one ends, and it is supposed to autoplay the next video.
For example, while watching HB101, it finished playing segment 24, then started playing segment 26 instead of segment 25.
I've noticed it skipped the last video of a chapter, and played the first video of the next chapter, but I don't know if it consistently does that for every chapter.
I also don't know if the issue is specific to certain courses or not, but it seemed to skip more segments while watching ET101. The ET101 videos it skipped might have been every other one, such as the even-numbered (e.g., second, fourth) videos within a chapter. HB101 only skipped one that I happened to notice.