I got this when I rendered it out I assume this would be better suited on the forum but I can't log in there for some reason.

That worked! little 10 second render came out fine.
I think this can be closed

Please attach screenshots of your render settings and the game log of when you rendered it.

Screenshot

Command line settings:
-y -f rawvideo -pix_fmt rgb24 -s %WIDTH%x%HEIGHT% -r %FPS% -i - -an -c:v libx264 -preset ultrafast -pix_fmt yuv420p "%FILENAME%"

not sure how to get the log? I assume it is in appdata

Ah, no need for the log, looks like command line setting is invalid, it should be bgra not rgb24.
You can reset it by temporarily selecting a different preset.

It should probably be automatically reset when upgrading from an old version. Keeping this issue open until that is implemented.

I'll that to render, first time took roughly 1 and a half hours so will get back if that works, should probably make a smaller test render.
Not sure why it was changed.
Thanks so much!

Not sure why it was changed.

The new version has significantly better render performance with most GPUs.

I think this can be closed

I'd like to keep this issue open until I've implemented a check which automatically resets the command line argument when upgrading from an older version.