I was able to reproduce the "run away" behavior as follows.

I have w set as "do not pass", which is also run forward.

If I do hold shift and hit 'w', shift-w will get sent to my alts, and they -will- run forward.

So here's how I did the run away bug.

Hold shift
Press W
Let go of shift
Let go of W

And they are off! Until i click on those windows and hit 'w', they keep running fwd as if w is stuck down.

Works with asd, as well.

This is with keyclone version r. Did s fix this?