No sound with Emulation Station/Retroarch

Subject says it all. LibreELEC 9.0 (Leia). It's a fresh install. All other sound is working (movies, tv shows, etc). If I launch a game from Emulation Station (or direct from Retroarch) I get no game sounds. If I navigate to my roms directory and launch a game from there with an emulator the sound works fine. I've played around with all the sound drivers in Retroarch and tried them all.... Appreciate any help you can give me. Thanks.