Apologies for a little thread drift but this reminds me of my only FP break: While I’ve had any breakages in any of my CZs, I did have a FP break in my S&W 625. I used it in a match one day, shot the whole match no issues, then upon cleaning I noticed something wrong. When I pulled the trigger the firing pin extended as it should but didn’t retract when I released the trigger. Must have broke sometime in the match- I suspect the rearward impulse must have pushed the FP back.
This is one of the reasons I always clean my guns after I shoot them- gives me an opportunity to inspect them and perform any minor maintenance.
While CZ will fix it for you, I agree, this is a good opportunity / excuse to upgrade to the CGW FP