Hi,

1. First, check under Options | MIDI Input/Output ports, and set everything to MIDI plugins. (this is slightly different than BB2018)

2. In the Plugins tab of the Mixer window, click on one of the Plugin slots (e.g. where it says 'none'). In the Plugins window, click Default synth. This should be set to something like Apple DLSMusicDevice or Apple MIDISynth.

3. If still no sound, check the Sound Settings in the System Preferences. Look at both Input and Output - set them both to 'Internal'. There is sometimes an issue where a device with an usual / unsupported audio format gets selected here. For example this sometimes happens when connecting Bluetooth headphones.

Andrew
PG Music Inc.