Can’t say about that. ATV is still on my wish list. My viewing is either dish network or on disk. I do have Netflix but only use it in the winter when I’m actually in my house all the time. Even then, I use NF with my 700 or PS3. Not a fan of streaming yet. It’s convenient but compromised.
I don’t see anything in my Marantz menus that stand out.
I would try and do an update and or reset the Sony. Assuming it’s connected directly via hdmi, setup for auto/bitstream, and you have the right disk with the right track selected( endgame only has one choice really on the 4K disk but I always check every time), it should be working.
When I push the “movie” button I see this.