your DNP contains: WASD

and you press:

shift down
W down
shift up
W up

what passes to your clones is:

shift down
W down (since this is really shift+W)
shift up

note... no W up, since W is not shift+W... and W is on your DNP

and since wow works off of movement vectors (the down and the up.. in between doesn't matter)... you end up with a 'run away'

solution? add shift+WASD, ctrl+WASD, and alt+WASD to your DNP

now... i could modify the way the DNP works... and block ANY version of W, modified or not.. but i don't think people would like that