My OPL refuses to recognize games (or anything really) on my external drive; I might try doing an SMB fileshare but the fact that my drive can't recognize games is concerning. Retroarch refuses to boot, but simple media system boots (although throws a bad drive error or something of that caliber, but still works) On a 7xxxx series super slim using FMCB on a premade card. OPL is the latest off of github, using a 2TB external exfat and a 8 gig fat32 for programs, although for some reason retroarch and sms booted off the exfat with ELF.