Glowlight Plus plugboard/save template

Hello,

Picked up a new Nook Glowlight Plus to replace my Nook Glowlight...

After updating Calibre, no problems sending books.

However, the plugboard I've had configured forever wasn't applied. Found the "Save Template" under device configuration (when was that added? ;) ) and set that up with:
{series}{series_index:0>2s| - | - }{title} - {authors}

Sent the books to my NGP again and I can see via windows explorer that they have the expected name. Unfortunately, when I looking at the books on the device, the original title & author is all that is shown.

I'm guessing this means the NGP is using metadata from the .epub itself rather than the file name, even for sideloaded content.

What do I need to do to get my series name and number to show in the NGP library?

Thanks!