Holding Right click while strafing bug
I can recreate this issue in any situation anywhere.
I usually use right click and any movement functions possible on the keyboard to keep myself aware of everything and viewing where I want to be viewing at the same time. What I find is that if I am strafing while turning with right click the mouse cursor will sometimes blink and the screen doesn't continue a clean movement causing me to lose bearings.
I do find myself getting frustrated at times while trying to relocate as a caster during boss fights or any sticky situation (and still seeing what I want to see).