@Brunnis I ended up just reflashing with the stable release, and loading old saves. Now I'm having an issue with one game(Azure Dreams) on psx, where when I goto the save card selection screen it and choose slot 1 it hangs. The spinning save card graphic plays, but it accepts no input other than opening the retroArch gui, or hard stopping the game. I'll try some things to see if i can get it working, but it's been frustrating to say the least.
Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first