Broken segments on certain episodes.

I was watching "Dr. Stone: Science Future Cour 1" and many of the episodes seem to have broken segments where they don't load. Like it loads up to a certain point then freezes, you have to skip ahead to get it to load the next section but even if you go back once it's loaded, those frozen parts stay frozen.

Another issue I noticed with the subs, they don't show when you initially start the video, you have to first turn them off to get them to show up for some reason.