i do have roms in the folders
/home/pi/.emulationstation/gamelist/n64 or what ever emulator
the roms are zipped but i have tried them unzipped with the same result
i have had no problem in the past with this. the roms are the same ones from before.
i have a pi2 with the latest 3.1 retropie os
i tried fully binary install just to see and still nothing