HDR Autoswitch causing issues on my LG OLED65C8

Hi @sam_nazarko! I had previously downgraded my OSMC by following the instructions here: Video improvement details - #7 by obstler42

Today I was not thinking and upgraded OMSC to the december release and again my 4K content cannot play. I thought no worries, I’ll just downgrade again but you have removed the code to downgrade. Can you please help me out?