I can ready them, aim them, zoom with them, but when I release left mouse button (I'm on pc), nothing happens...the animation remains in the aiming mode.
I have no problems with bows or other combat animations.
I'm thinking it might be a conflict with a mounted combat mod I'm running (about to disengage it now and try things), but if anyone has come across this before, or has any reasonable suggestions, I'd like to hear, thanks.
Edit:
Sorted, it was the mounted combat mod.