Thanks!
Are your username / password still saved? If all the settings are correct and it's still not working, I may have broken it with the problem @MrHuu pointed out.
think these un-official cores broke the connection to RetroAchievements.
Is that possible? I had RA working before I updated, at least I got a few logged earlier. So they were working. I know that I have been changing a lot over the last few days.
Are your username / password still saved? If all the settings are correct and it's still not working, I may have broken it with the problem @MrHuu pointed out.