Cliff,
Yes, I got the issue resolved. The g-code was no different to the eye, but when I ran it through a g-code interpreter it was showing strange characters that I had not put into the code. After lots of calls with people way smarter than me, what we determined is a newer version of PP than the one it was written in didn't agree the old code. The new post interpreted some NL and CR where there was none and barfed right in front of that op. It's still confusing to me how it happened.
I reprogrammed that op fully from the new version of PP and it worked like a charm.
TL
R - New PP post didn't like old PP code.