Yes flickering screen is the, as for a separate HBAO branch, if I get some free time week, I can do it, HBAO is actually one of the easiest branches to integrate with newer versions.
No, need to determine what is causing the. It seems using NVIDIA’s HairWorks branch with the fix provided, works without any issues, so something else appears to be causing issues with my branch, it could be one of the other techs.