Files from folder that I readded after I've deleted don't seem to show on my devices.

So I deleted a folder on Mezzmo named "Videos" from a folder on my PC also called "Videos." Files were updating just fine until recently for some reason. So I decided to remove the folder "Videos" from Mezzmo, then readded it again. But instead no content showed up inside the folder on my devices. I've tried maintain playlist nothing. Also renamed the Mezzmo folder to a different name, nothing.

If I put a folder that was inside "Videos" folder into Mezzmo, all the contents showed up. Everything seems to be working fine except for that "Videos" folder. What's wrong?