Fixed now.
This has to do with the "push down" effect. The push down effect is required to do e.g. doublejumps. With autowj 1, the "status" handling for the jump button changes a bit, so the game sort of thinks you're still holding the jump button because you haven't released the special key (because you have to actually click the special key for walljumps, you don't get auto-walljump).
Normally the game will never push you down if you're holding the jump key. Without this e.g. skimming the side of a ramp from behind can make you stop. Hence pushdowns are ignored when the jump button is held down. Fixed this now by also ignoring the pushdowns when you're holding the special key. Can't think of any downsides to this atm, so let's see how it goes :)