New Media Source Won't Scan

[KodiUser1138]

JF is run as admin. I just stopped and exited the server and restarted ensuring it runs as admin to confirm. No method of adding this source works despite it being setup just like multiple other sources and fully accessibly both locally and over the LAN by other programs and systems.

This folder/share/drive is on the same PC as another source that is already in the library and works as intended.

All of the media contained within was scanned fine in it's previous location.

I never had issues like this prior to v10 as that was the last time I added sources.