The latest update of Retroarch completely breaks the Sega CD emulation of both Picodrive and GenesisPlus GX. The music files won’t play.
For the record, I’m using an ISO/WAV/CUE setup and the file names in the cue file are exact.
Tested with cue+bin+ogg, it’s working.
I solved the problem by using a BIN + CUE setup. Worked for me.