Yarrr all

Inspired by some of the posts here I decided to give the above setup a go. I purchased a month on Real Debrid, installed Kodi with Fen on my Chromecast TV and it seemed to be working...with some hiccups.

My Chromecast TV (or at least the one I tested it on so far) is the basic version (no 4K support). 4K content is really choppy on it. I managed to set up so that it's only showing 1080p content and I got the following result:

• Shrek 1 worked perfectly fine. The subtitles loaded in correctly, the movie played fine.
• Shrek 2 didn't show any links (shows links when setup to show 4K content)
• John Wick 4 (only available as 4K, nothing showing up when set to only show 1080p content, same as above)
• John Wick 2 showed 1080p content but the movie starts somewhere in the middle of the movie (not even that it's rewinded to half of the movie - literally time code 00:00:00 is in the middle of the movie)

Is it possible that some (most of the movies in my experience so far) are only available in 4K?

What'd up with some of the movies showing from the middle of it?

Thanks in advance