Can't encode h.265 profile "Main 4:4:4 10"

Hi everyone, long time lurker, first time poster.

Normally I use the h.265 Main 10 profile for Youtube HDR encodes. Today I tired the "Main 4:4:4" and "Main 4:4:4 10" profiles and the encode crashes right after I start it. The error is "render job failed as the current clip could not be processed" with no other info. I checked the log and it looks like the Nvidia encoder is having issues. Is h.265 444 10bit encoding not supported on Nvidia GPU's?

I just successfuly exported both profiles using:

8GB GTX 1070
Studio driver 461.40
Studio 17b9 for Windows.

Thank you for checking. I realized that 'Main 444' works for me too. It only fails if I try 'Main 444 10' first, which fails and then any other profile I try fails unless I restart Resolve.

Can I ask if you tried 'Main 444 10' in UHD 59.94fps?

I shoot everything at 24 fps.

I should also add that so far, I can't find anything outside of Resolve that can play back those 444 files.