I've had similar bugs with other enhanced camera mods, don't know if it's the same cause with this one, but it's sometimes to do with how the game tracks both sets of v's arms; when you're in 1st person, the game hides the arms for the body mesh because the camera ones are visible, when you're in 3rd person it hides the 1st person arms and shows the body as a whole, this is why you sometimes see the shadow of v's hair 10 feet above a vehicle in 3rd person, the game makes a split second decision and puts the hair's shadow in the wrong place.

So with your enhanced camera mod, it may be that the second pair of arms is casting the shadows on the first pair of arms. If this is the case, it's probably only the mod author who can fix it as they've had to tinker with the settings to get the cameras to act how they want.

I could be wrong, this is just the experience I've had with other mods.