It looks like I will need to get a friend involved to figure it out.
I had a small length of aluminum molding sitting on the gasket with the
window partially open, thought it might have torn the gasket, but no, it is fine.
The only thing that I can see, is that the stops for the window have shifted.
Now being off by 1/4 or 1/2" means the window slides too far, and no more seal...
I might also look at putting a second switch in the back as well.