Decided to try Spies in the house Epic - hadn't played it in a long time since heroic ages ago.
For some reason, when I get to the wheel, no matter what position it's in, I can't get the air vent at the intersection of the pipes to turn in the direction I need to move forward. Tried it twice (because the first time it seemed the vent was placed wrong, too.) If memory serves me right, I got all the valves beforehand.
What obvious thing am I missing, or is there some kind of bug? It's been so long I can't remember if there's any alternative route besides that vent....