Sebastian,
Can I have you turn on additional logging please?
From the Help menu, choose "Edit Debug Settings..."
In the window that appears, check for the following items. If they're not there, enter each missing item, one at a time, into the "New debug setting:" field and click the "Add" button.
STARTUP_LOGGING
VOLUME_LOGGING
NAVIGATOR_LOGGING
NAVIGATOR_VOLUME_LOGGING
They should become checked automatically when you add them. Restart Photo Mechanic Plus and once it starts up, get the log to me the same way you did before.
Thanks,
-Kirk