Do the issue persists after creating a library with Shoko set as the only metadata provider? (Now is your time to check if you haven't already.) Edit: Here's the VFS directory, just to show the files ...
The issue I am having is that, no matter what I do, I can not get HAMA to assign the AniDB poster for a series as its main poster when fetching metadata - it is always placed somewhere near or at the ...