Audio problem: When Michael Shannon fires his gun, you can hear bullet casings falling to the floor, as is normal with a semi-automatic pistol. However, his gun is a revolver, so the casings won't eject until the gun is opened and emptied manually before reloading. (01:07:10)
Audio problem: Superman uses his heat vision against Cyborg that shot at him. Cyborg deflects it and the beam destroys a patrol car in the distance, that explodes in the background without a sound. (01:14:50)
Suggested correction: There is a sound of a small explosion. Considering the distance, and we're close to the heat ray grinding on his shield, it's pretty good sound editing. We should be hearing more of the shield anyway.
Audio problem: When the wolves attack Maurice and Philippe, the wolves make growls that only big cats (lions/tigers) would make.