Oh and I forgot to mention: Atrocitus bf1 wake-up can eat a bag of dicks
Sure you can block it, but damn. That thing should not be able to go through Supergirl's MB laser. It seemed to beat out literally everything except a d1 or d3. I can understand if it was an armored wake-up, like a b3 MB or something, but there's no armor flash or sound. It's just plain invincible and overtakes anything you throw at it.
Another thing was Black Canary's full-screen scream. It should not hit you when you're in the air, especially the closer you are to her. You can very clearly see the sound waves increasing in size as they go further out, yet when you're jumping right in front of her, very obviously not even getting touched by the waves because you're so high above them, it still catches you. That was a rather annoying visual inconsistency.
The only actual glitch I found was in Metropolis though. The stage interaction in the middle, where you pick up that stone tablet and throw it. If you're facing right, and you are slightly to the right of the tablet, your character will do the throwing animation without actually picking it up and throwing it. Very annoying.