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Originally the file had several cutouts. I removed all the other code and only left the code where it fails.

Interestingly If I cut the same hole at same location but start cutting out hole at...

I have a file here where the Z refuses to go up.
It cuts a rectangle then a hole then another hole then z can't go up (just a buzz sound)
Always after it cuts the 2nd hole, Always!!!
See ***...