That`s not always the problem and when it becomes loose, then You can just slightly bend 0.75 pins to create "holding pressure" and it`s totally ok again.
I've found this trick to work sometimes but not 100% so I am a bit hesitant to say it always works. On some it seems the distance between "falling off loose" and "too bent to fit" is a so small you have almost no chance to hit the window.