Sub-folders for structuring .NES files is not supported, so when you want to sort the files into sub-folders to make a structure, then they won’t be visible.
Reproduction Steps
Drag N drop a folder with .NES files into the Games folder.
Open the games folder.
No sub-folders
Occurrence
bug is reproducible
Found in
go to Config > Firmware page on your device and copy version / build numbers below
Version: 1.0.1
Build: 995
Attachments
simply drag and drop to upload or paste links to: photos, short videos, and project folder (.zip format only)
Pretty sure this is more a wish rather than a bug as there is no mention of using subfolders for Games in the manual, whereas the manual mentioned many time using subfolders for other features.