A Few Problem I've run into in this version

Hi I have updated my retroarch to the 1.2 version and now I have run into a few issues, for some reason when i scan a file directory some file extension are not recognized, for example on my SNES rom directory only the .sfc files are recognized and the .smc file are not. Is there some fix to this problem? Any help would be apreciated

The file scanning is based on No-Intro’s checksums. It will only recognize files that match. That means headerless SNES ROMs only, in this case.