Cheat button won't work

I just started with infinity, and i’m not sure if I’m doing something wrong or it’s the trainer or what. I downloaded the cuphead trainer, and none of the cheat buttons seem to be working. Game runs fine, no problems, but when i try to turn on a cheat the button doesn’t make a noise and doesn’t turn from off to on. No idea how to fix.

Is there a checkmark next to Play?

Yes, there is a check mark.

Are you using the right one? There are 2 Cupie head trainers on here Windows and steam use the right one !