Hmm, I did not have the log file set.
Funny thing though, I originally cancelled the ortho creation after seeing it would take 2 hours.
Then I realized trying to use PS might not work on a project opened and saved with metashape, so I reran the ortho creation in MS.
The second time, it ran in normal 20 minute time frame.
I'm going to test more to look for this pattern, and also have turned on the logging.
thx