this works as intended. that may sound weird, but you have to understand how it's working.

let's say you put W on your DNP list. then you do this:

LSHIFT down
W down
LSHIFT up
W up

the problem is, the W down went to all your wows since it was LSHIFT+W... BUT... the W up did not go to the wows as it was only W, which is on the DNP.

this can be resolved by UNCHECKING the 'strict' option. this will block any and all instances of W being sent to the alts.