I dont have a 'C' but I'm sure that the banks A-D are RAM banks which you can save any patch into. The rest are ROM that you need to actually burn patches into using the VC app. You dont have to burn to the first 4 so maybe that's what is causing the issue. Re-install the factory pre-sets from Access's site if you need the A-D ones, as for the others, they are probably gone. Re - burn from the original midi file's. I have pretty much all of them if you need...PM.
