Library scan issue

So I have a few shows in my folders and yet content that has since been moved/deleted is still showing up and new content is not seen after updating library, signed out of all devices and signed back in and updated again and still no joy. Anyone had this issue in the past? I also have tried to remove and re add the library and yet it never seems to delete.

Ok, Welcome to the forums.
Adding shows can be tricky. How about you start here.
https://support.plex.tv/hc/en-us/sections/200059498-Naming-and-Organizing-TV-Shows

Remember, Plex is a bit picky about shows so you must comply to the conformity