I am still kinda new to the forum so I am not sure if you are a developer or not, but if you are, do you know if this is a bug that VLC is working on to hopefully fix in a future update?Yes. Also UHD menus are still complex to be made to work.
I put one on https://trac.videolan.org/vlc/You should file a bug about that.I am having the exact same issue with Ultra HD Blu-Ray Menus. if I have HDR Turned On, the Menu is blacked out/incredibly dark. When I turn HDR off, it looks fine
Screenshots: https://imgur.com/a/1n0WYRN