Crosman 1400 won't fire with safety in?

Just got my 1400 back after getting new seals and wouldn't fire. Trigger didn't move much, and only a little when the safety was flipped.

Popped out the safety and fires just fine. Two pellets made one big hole. Yea. Put back in and doesn't work.

What should I look at that might have gotten shaken out of position in shipping?

Thanks,
Rich