OK, after hours of tinkering I figured it out. Apparently, for some odd reason, the SPL files of GAINED abilities in kits must be 7 characters or less, or you'll experience this annoying bug. Changing my SPL files from 8 to 7 characters fixed this problem
Thanks for your replies. I agree that a charisma penalty is very fitting and will definitely implement this in my kit.
However, it will not really affect the gameplay and I still fear this kit is a little overpowered. oh well. don't play it if you don't like it
and I forgot to mention that it's limited to chaotic evil, neutral evil and chaotic neutral characters.