I am creating my first Blu Ray right now and I exported as H.264 Blu Ray (I've attatched a screenshot with my complete settings) but when I open the exported m4v in VLC, Encore or import it back to Premiere it is black and white and I have absolutely no clue why.
Did anybody experience something like this or did I miss something?
try resetting premiere's preferences. make sure you haven't changed any encoder preferences.
copy all luts from premiere lumetri-technical to ame-lumetri-luts technical and
delete media cache and in ame preferences, deselect "Import sequences natively"