So ive noticed this more with zenyatta but theres little dips in the floor where your character will sink and act like hes falling for a little bit. This is on hollywood when you just walk to point from defender. its on volskia on second point around the box. Its a little bit annoying because you get stuck in place and that can be devistating in game if your caught out.
I notice the one on volskaya a lot, gets stuck pretty often.
Died once because of it too.