Berryboot not seeing image files on detected USB stick

[TheRealPower]

I'm selecting add OS -> copy to USB stick in berryboot on my Pi3 but for some reason berryboot just isn't seeing the images on my stick. They're all image files made for Pi3 that I got from the berryboot images website. I've tried multiple USB ports but no luck. My USB stick is 16GB and is in FAT32.

[symbios24]

Reformat the stick using the sd formatter tool and try again or use another stick