Hello Paul, I upgraded to 9.3.0 on my OSX Sierra. I observed that when I want to reorganize the subfolders on an external USB drive, Jaikoz prompted numerous errors and do nothing.
- open USB folder where the songs are stored
- change subfolders based on metadata
Moving the songs to a local folder on the HDD worked and ran eventless.
I tried to see if there is any JIRA ticket open for it without success.
In summary, I believe it is a bug with the USB unless I do something wrong and there is a workaround.