Brutal Doom 19 Thread

Hey guys, I tried everywhere to find a way to fix this, but I came up with nothing. I'm getting this error;

"Script error, "brutal19.pk3:melee" line 265:
Invalid state parameter a_setpitch"

When I try to engage Brutal Doom 19. I can't find a resolution anywhere, the game runs fine on Skulltag but not with Brutal. Any info would be great as myself and a bunch of mates want to give this awesome mod a good going over a few times!

Thanks again!