I bought a used JK with a hard top installed.  I changed to the soft cover, but I'm having ntrouble with the two brakets that hold the bar at the bottom of the rear window.  I can snap it on okay, but when I pull the cover down and put the plastic lip into the metal bottom lip to seal the cover the bracket pops out.

Is it supposed to be screwed in or something (or am I doing something wrong)?

Thanks