OK... when both doors are together, the screen door handle attaches itself to the solid door via a blk V shaped "clip". The handle slides down and "clips" itself to the solid door. On my door this blk V "clip" protrudes out further than the plexi when the 2 doors are attached, preventing the sliding section with the knob, to slide completely over to the screen door frame. On your door (I can see that yours is different as the 2 main plexi panels on mine are on the outside) did you have to cut down the blk V shaped "clip"? I'll post a picture later tonite.
Good idea on the bifold doors! They are a space saver!