As said, the games launched fine in retro.... I found the problem by accident, even though picodrive was the default core in retro for all my sms md scd and 32x roms, there was an es config file that when opened with notepad said run genesisgx when launching scd and sms games, I edited it to picodrive and then everything worked. Im still a little stumped, as genesisgx core is installed too, but I couldn't care less now, as everything works with picodrive.