SCREEN TINTING STOPPED WORKING

Okay, I've worn out google trying to find a solution, unfortunately most google searches for tint issues just bring up people asking how to add tints. I've made it most of the way through my demo and started to play it through from the beginning, when I realized none of my tints are working. Sometimes they dim a little, but the colors never work, and the dimming is never enough. I've checked my events and they're set up right. (And every time I've played previously they've tinted correctly) I thought maybe a script could have messed them up, but I haven't added a script recently that would affect tinting (that I know of). I pasted my tints into new games and they work.

Any help would be appreciated. I can post events, list of scripts, pictures or anything that anyone thinks would be helpful. (I'm literally stumped, and I'm pretty handy with RPGmaker...) Thank you in advance.

Thank you for your reply! I am using Ace, I had forgotten to mention that. It turns out it was the Khas lighting script. (Which I should have known, I feel stupid for not realizing sooner.) I had to turn the Surface_UE to false for tints not to be affected.