No Artwork With Plexbmc

Hi

I just installed a fresh copy of kodi 17 with joethepartylion’s revertshelves skin and the latest version of plexbmc (ver4.1.0 i believe) that he posted here. the problem is i don’t get any artwork. i just get a square and the black banner at the bottom where each show’s artwork would be with the name in it. is anyone else having this problem?