I don't know if anyone else experiences this (couldn't find anything via google) but a good 80% of the time when I'm knocked back in this game by an enemy ability I experience a strange "lag", for lack of a better term (it's not really lag).
Basically if I get knocked back and try to immediately run forward, my character will repeatedly reset back to the exact spot I originally landed on in a sort of loop. My character will run forward about 3-5 feet, reset back to landing position, run forward about 3-5 feet, reset back to landing position, run forward about 3-5 feet, reset back to landing position, etc. Happens a good 4 or 5 times before I'm back to normal.
During this time I'm able to cast spells and use abilities but it's horribly disruptive for positioning and mechanics. Again, this is not an internet lag or hardware issue on my end whatsoever. There is no setting I could change to cause this, it's very clearly an issue with the game itself.
Posting this in hopes it'll get fixed or at least to see if anyone else has experienced this bug.