Open your FBNeo emulator and look at the bottom of the interface or the "About" screen. Note the version number (e.g., v1.0.0.0).

FBNeo is "version-aware." If you have a newer emulator core but an older ROMset, certain games may fail. FBNeo not working with "Romset is unknown" : r/RetroArch 9 Aug 2023 —

Romset+is+unknown+fbneo+fixed+free ((install)) [100% TRUSTED]

Open your FBNeo emulator and look at the bottom of the interface or the "About" screen. Note the version number (e.g., v1.0.0.0).

FBNeo is "version-aware." If you have a newer emulator core but an older ROMset, certain games may fail. FBNeo not working with "Romset is unknown" : r/RetroArch 9 Aug 2023 — romset+is+unknown+fbneo+fixed+free