Tangle Tongue Spear Monk

Im following a lightning spear build and everything works fine with my seaglass spear, but when I swap to tangle tongue like the guide suggests my spear abilities(lightning spear, storm lance, and barrage) are no longer usable. When I press one of the actions(such as mouse 1) My characters head glows red and I hear a strange sound. The only thing that changes in my build is literally switching to tangle tongue.

I cant find info or a reason for this anywhere!!!