I need help again, dropper tool doesnt seem to be working correctly?

I'm using Corel Painter 2020 and recently is been really glitching out on me.

Not only does it freeze my task bar/ exits randomly, the worst thing right now is that picking a color with the dropper tool isn't working correctly? 

Like, the color comes out darker than what it truly is, why is that? wasnt an issue before.