Plex Movie Agent not working - metadata downloading but no pictures

Yesterday I bought a Western Digital My Cloud Home. I managed to get everything setup however when adding movies, Plex is downloading the metadata and not any of the images such as posters or cast pictures.

After further investigation, I noticed that in particular, ‘Plex Movie’ and ‘The Movie Database’ agents do not download pictures. However, if I FanArt first - it syncs posters.

The screenshots are exactly like this post here:

I have extensively played around with the file names, I’ve reordered and agent and Changed the default agents etc. Is seems like these pictures or getting blocked or something. Any ideas?