Thank you for the log file.
I didn't see any errors pertaining to the problem that you're having.
Can you send me screenshot of your Ingest dialog in Photo Mechanic when the error occurs?
You may also try unchecking the box "Run Navigation Services dialogs in a separate process" located in Photo Mechanic's Preferences under the Accessibility page, to see if this setting resolves the problem for you.
Thanks,
Jerry