Achievements

Hello.

Achievements working fine for NES games at least using fceumm core. But for some reason they do not work for MegaDrive using any available cores (Genesis Plus GX, Picodrive). I tried at least 3 games (Zero Wing, Zero Tolerance, True Lies), from GoodSet. I can see that I started games on my retroachievement.org profile, but no single achievement ever popped. Even the easy ones like complete first level. Am I doing something wrong or they are broken currently? I’m using latest RetroArch version (1.3.6) available from https://launchpad.net/~libretro/+archive/ubuntu/stable under Ubuntu.