The game was updated on Steam, and they fixed the stuck vent in the Comms Tower. I got worried when I went up the vent again and my hands clipped through the wall, but it lets you climb up now
Among other fixes.
"NOVEMBER 1 - EWBIE
Fix for the issue that was causing credits, consumables, and profile progress to not be saved in Multiplayer.
Fix for the Burnley Tower vent that Batman wasn't able to climb up
Fix for Free Flow Focus mode not unlocking upon unlocking Shadow Vigilante rank 3
Fixed player falling through elevators/world in most cases. For players that were stuck in free fall loop; if you are not back into the game or if it looks weird around you when you load the game, here are the steps.
Go in pause menu and select Restart from Checkpoint.
If Restart from checkpoint didn't work, trying beating up all enemies around you.
If there aren't any enemies around you, try going through a door.
Those steps should get you back into the game."
..wait there's a multiplayer? Hmm