I'm using the chose between Hanharr and Mira Mod.

I moved ahead as my PC for some time then it cut to the arena fight. I chose Mira, won against Hanharr, killed the hounds, got the keycard. Then I left the room killed all the bounty hunters. The only 2 places are the doors, one emergency espcape that doesn't trigger anything (Nor does the console next to it) and the other tunnel on the top right side, which doesn't open but suggestes there should be a way to open it.

Is this a bug? Do I need to rollback saves and unistall the mod? Or am I missing something?