Did you send the fix to retroarch's repository yet? If not, do you have an estimate of when you will be able to do so?The ideal solution is to use the cores as plugins with Wiiflow and with custom .cfg.
However, there's also a bug in all the recent retroarch that skips the .cfg when launched like this. I have a fix but I haven't sent it to their repository yet.
Last edited by comokepa,