What firmware version are you on? There's been recent beta releases -- that's if your issue isn't because HDR is enabled. Also, that's why I imagine there's a Auto HDR setting -- so you can set your HDR to be enabled on specific times you prefer it to be on. There was a bug that wouldn't enable 4k at 60FPS when Auto HDR was setting HDR to be off, but that's been resolved in beta firmware releases (and the 1 new official release it seems).
Also, have you tried looking at things on the app? While your 2nd screen is weird, I wonder if it still looks "funky" in the app and/or looking at it in another interface might reset how it's coming out on the unit. And, like I mentioned before, I wonder if a new version of the firmware flash might resolve this stuff. Or just a plain factory reset (which, depending on the firmware version, will be forced to do anyways).
Hope this helps and good luck to you.