I am attempting to save, and all of a sudden, when I attempt to correct the subfolders from metadata, those folders’ numbers will not transfer. I even attempted to add a slash and the folder number in the subfolder field and that doesn’t work, either. 
I have attempted a few things (restarting Jaikoz, moving the music files to another folder, and starting over, but noting seems to work. I have not restarted the machine yet. I have a screenshot for reference.
A Weird Unexpected Issue with Jaikoz on Windows
Is Disc No part of your selected rename mask?
It has been a long time since I had issues with this, and I honestly don’t remember where to find the rename mask. Could you kindly direct me, and explain how to fix it, please?