6n2 Passenger window only goes up by removing/inserting the MBF39 fuse

Hey guys, 

sorry this is yet another "My window is stuck down" question but I think mine might be a bit different..?

So, as with a lot of other threads, the windows (driver and passenger) go down 100% smoothly. The driver's goes back up smoothly but invariably neither driver nor passenger switch will make the passenger window go back up.. Very occasionally it might work and if it does, it's perfect.

However.. if I remove the 39 fuse (passenger window fuse) and put it back in, the passenger window goes up perfectly smoothly.  Does this still indicate the regulator is likely faulty? My assumption is no and that it is the switch.. but if that's the case, how come it doesn't work on from the driver's side either? Are the switches connected in series?   

If it isn't clear by now, I am somewhat out of my depth to say the least.. if I have to pay to get it repaired, so be it but I would really like to try and understand what's going on here.

thank you in advance for any advice/tips/insight!