I think I may have figured it out. I think the problem may have originated from when I changed mega drive to Genesis in the system config before changing the theme to eudora. I believe this created some kind of dummy folder titled “genesis” that essentially linked to the roms in the “megadrive” folder. When the theme was changed to eurdora I think ES displayed both of these folders as separate systems. To fix this, I changed everything back in the system config to the default before changing to the Eudora theme.