@normohl for novmu on dreamcast, remove the saves/reicast folder (not sure about the exact name). i've fixed it in the last versions, but if you previous verion created a bad vmu, it will not detect it and use it.
vmu is the only way to save on reicast for the moment, but it works well.
about kodi, very strange what happend. i may need a report (menu/system/information/report)
