Good for you! Im excited to finish mine hopefully in the next few weeks.I finished the base of my Ashida! Worked on it for the last two days and got most of it working! (Thanks to Viilmo who helped me troubleshooting video, for anyone wondering, apparently I didn't set up the VGA patch in the RVloader installer and had to reinstall it)
Not sure if this is related, but the games you mentioned dont work are both gamecube, maybe theres something wrong that affects gc games and not wii ones.Sadly I have a few things to troubleshoot:
1. Audio works, but the volume dial does not work and headphones are not recognized
2.Some games (smash Bros melee or super Mario sunshine) don't have video, I can hear from the speakers that they are running, but the screen is either red or just off. Games like so wind waker, MKWii or Donkey Kong country return work just fine.

