@slotcargene,
Slot, it's pertinent to note that a peculiarity of a certain"modern" breaker design, that is, it appears to be on when it's really off, and if you're not familiar with the phenom it can drive you to distraction . Even if you flip it to OFF then back to ON, it's
still not on
What you have to do is you once more switch it ON but then switch it OFF with greater alacrity: quicker and with more force. When you next flip it ON, it then
does come on
…..., and yes it sounds nutty but believe me it's true
If this isn't your trouble however, then obviously a wire has broken or come loose somewhere: Good luck