What I do.
Well, mine does it too. Since there are only three days a year here when it is comfortable to have the window open, it's rarely a problem. What I plan to do when I am at a dealer and think of it, or a truck yard and think of it, is to buy another one of the visor catches that screws on to the ceiling above the windshield, and put it in the correct spot over the left window. One of these days, sure.