Hi.
i created a playlist with the desktop menu and dragged a couple of images on the Screenshot panel. I can see them, even if I quit and restart RetroArch, and indeed the “g:\RetroArch\thumbnails\MAME 2003-Plus\Named_Snaps” structure has been created and the files have been saved there with the correct game names.
Still, I can’t see the thumbnails neither in the regular interface nor in ozone.