Repeat function on Ultra Blu-ray discs

[melmak]

I have some Blu-ray players at work and the repeat functionality is so frustrating to work with! I was wondering if anyone had any insights to some of the problems I'm facing here.

I have Ultra Blu-ray movies playing at all times (on a LG UBK90) and so far only one disc seems to start playing by itself after being on the main menu for 30ish (or 45ish?) minutes. That disc is Episode IX Rise of Skywalker. Here's what's funny about it though, I didn't set the repeat. In fact, if I press repeat on the remote or try to set it I get the denied logo. So clearly I can't set repeat title, but apparently if I leave it on the menu long enough it'll start playing the movie by itself!

So far no other disc I've tried will work with the repeat function and will stay on the menu forever until I press play manually. My question would be, why does it work with Episode IX and not with other discs (for ex, Infinity War)? Another question I have, is there a list of known discs that'll start by themselves? I need to have the movies start up by themselves if possible, and I can't always be there to do it manually unfortunately.

Thanks!