Has anyone had holes that disappeared from the NC drill files when outputting a file from Allegro 16.3?
I have a board where I have placed a new component. The manufacturing drawing and drill tables show the new holes and hole counts are correct. But when I viewed the gerbers and drill in GCprevue, the new components holes had disappeared. I then double checked the NC drill file in notepad and they have definitely disappeared.
Has anyone seen this behaviour before?
The drill holes appear to be correct. But as no-one here has signed an NDA and this is a public forum, I am not allowed to post the BRD file.