Blink (+ Temporal Curtain) animation bug
If you want to fix it, just jump (while casting Blink or afterwards). Also, stopping fixes it.
That’s not a fix, that ’s a band-aid.
Well, it’s your choice: Press spacebar or wait until they fix it.
I find this to be more of a fun thing than it is an annoying thing. I’ve encountered it countless times already, and it still makes me giggle every time my character enters a sort of trance -like state while hovering across the ground without moving his legs.