X Carve drills holes in 3 D projects why?

I am using V Carve Pro. Vertic Carve Pro. Iv only produced one 20 + hour project with it not happening. What can I do about it. ? I execute V Carve Pro with cncj’s which is a great program, I like it. But this is very frustrating. Thank you for your help. Please let me know what I can do. Wes