picodrive crashes when load finishes|nLoader OS 4.4 CAS

[SuperXX]

Recently I tried to play Outrun and Sonic The Hedgehog on my Calculator, but when I was loading the ROM on PicoDrive and the load bar reaches 100%, it just crashes the whole calculator and it needs to reset. To test if that was because of nLaunch (because before that Sonic ran fine, even with and outdated version of PicoDrive) and I´ve flashed the original Boot 2 and the OS 4.4 with no CAS and it worked. The thing is, it´s so annoying to have to do that just to use picodrive. Does anyone know a fix?