I don't know what you are doing wrong.
Are you using 'Reroute all MIDI to default DXi synth'?

Are you using more than one instance of the synth?
Normally you just save the song in SEQ file format and it remembers the synth patches, shouldn't need to Save Group or any of that unless you are doing something special


I do not work here, but the benefits are still awesome
Make your sound your own!