External USB roms problem

[Gwyllion]

With the latest recalbox, I have the roms into external 128GB usb stick, it seems all is OK except appears all the systems less...MAME. Changed roms, copied several times, but no luck. Whats the problem guys?
Thanks

[Substring]

@gwyllion wrong folder ? corrupted gamelist ?

[Gwyllion]

@substring Nope, same folder recalbox created "mame". 2 differents gamelists confirmed and both not recognized. These sets Works fine into internal microSD. Rest of the folders are present and works

MicroSD exFAT formatted FYI.