Since installing the mod I can enter Rivet City, The Marketplace, Flight Deck and Bridge Tower but no longer able to exit after reentering the stairwell as the Marketplace is just an open grey doorway. The only solution at the moment is to exit to Flight Deck and drop off the side to the deck below with the exit bridge. I can reenter the stairwell / Marketplace again but not leave.Has anybody else come across this ??????????