I am trying to cut a gear. This gear has 3 spokes. Therefor, the cam shows basically 5 chains. 3 chains for the voids between the spokes, 1 chain for the hole, and one for the teeth. This seems to look basically correct inside lazycam. However, when it generates the gcode, it only generated the code for one of the voids, and then puts some G42's behind it (about a dozen) and nothing else. Why is it stopping?

Do you have a Mach3 license?

Yes. And I have had it generate MANY more lines than this before.

My bad... it's the license. I had loaded on my laptop for the purpose of not having to stand in front of the machine the whole time I'm tweaking the files and I forgot it loaded in demo mode.