David,
Even though I was not able to resolve our issues, I appreciate your comments none the less.
I am curious to hear more about some of the other issues you have seen that people are having with the migration, and if they were able to over come them.
I was not able to get a single search engine hit on the error message we received. But perhaps issues others have experienced may be of help in getting to the bottom of it. (I will do some searches with less specific key words in the ESRI community to see what I come up with, but if you have seen some common issues, please do share.)
Also curious what anti-virus is running on your enterprise servers?
Our IT department installed Cisco AMP on all our servers on Christmas Day and our upgrade was attempted on New Years Day. So we haven't really had much time to determine if the anti-virus had any adverse effects on the enterprise deployment.
I sure hope I don't need to do a double upgrade like you did in order to get this done. We are trying to migrate our parcel fabric from Desktop to Pro so it is pretty important we get this upgrade done before we start mapping 2021 parcel changes.
Thanks again.