If you shoot with a bow in your off-hand, it does not have the texture that moves the bow to where you looking, it rather looks down to where your fist is facing on the ground. You can see this issue by being in both F5 modes, but not in first person view.

I've made a video regarding this issue, please check for further information: https://www.youtube.com/watch?v=yhqhDzqd9dc&feature=youtu.be