Happens all the time, im nocking my bow back and i get kicked into 3rd person, this bug has been in the game since i started playing in Nov.
From what i hear it happens to everyone!
Here is a video of it happening, this is not me this is the game kicking me into 3 person making it impossibly hard to shoot!
https://youtu.be/_SeeTmYi_6U?t=27m46s