it hatched but it has a crossed beak.....

[mrandmrschicken]

I empathize with your decision. I would continue hatching. It could be an isolated incident but you won't know for sure unless you forge ahead. It may be that the chick was to big for the egg, lots of reasons. It could be birth defects. I do not know. But, you won't know for sure unless you try again.
Good luck...