Anyone that's received it - do you get the music from left channel only? If I test any other MVS cart everything sounds normal, but it seems the game is outputting music to only left channel. Sound effects and everything else is correct between both channels.
It's annoying because it sounds worse than the Megadrive version that way...
Also noticed a bank switching issue (I think) - tiles messed up.
Cleaned edges a few times. Test any other MVS cart and they all work perfectly. I suspect the graphical thing might not glitch on other MVS models - it could be 1FZ related. I've got tonnes of other MVS to test against later, including other 1FZ if I need to. I think the graphical thing is board layout related tbh. No reply from the developers yet.