LUT's, and Ultra Key NOT WORKING.

Using Premier Pro 2024 v24.2.1 - Installed latest Version - Apple Macbook Pro M1 Pro Sonoma 14.2.1 - Quicktime MOV Footage - Footage is Filmed in Arri C-Log

I was editing when I realised my adjustment layer containing my LUT was not enabled. I enabled it but didn't work. I then realised that in my 'Lumetri Colour' tab under 'Creative' I could see the LUT applied, but it just will not show on my Program Monitor whilst editing. Then I realised one of my shots which uses a green screen effect on top, now suddenly had the green screen showing. I deleted the ultra key and re-did it. It still does not work, I've tried changing all the settings in Ultra key but nothing even changes no matter what I change. 

This happens in all Premier Saves, not just this specific one.

I've tried:

Deleting and re-installing (Removed Preferences and Plugins)

Applying LUT to Source Footage - I can see the footage applying in the Creative tab, as said earlier, but not to Program View.

Looked through Settings, View, Effect Controls, Nothing is Switched off.

I seriously have no Idea what this is, Please Please help.