I tried changing over to the White List as opposed to the Black List and I also had the same problem. Keys that easily pass when they are not on the black list will not pass when they are approved on the white list. Don't know what the story is, but I've gone back to the black list for now; although I prefer using the white list as it's easier to just tell the system what you want to pass instead of all the combos you don't want.

What's up Keyclone? Get to work... no more sluffing.