While running at full sprint speed (nothing in hands) and using freelook + zoom in to look around etc in 3rd person view whilst running in a perfectly set direction (for example running directly west).....zoom in suddenly drops (springs back) and the character gets slightly thrown off the original path direction.

For example:-
If im running and using freelook and im looking to the left, if I then zoom in to look into trees the zoom suddenly snaps back to normal view and my course of direction is now to the left of my original path. This also happens if im try zooming in to the right, the zoom drops suddenly and my players course is now going more right.