Thanks, a little more complicated than that, the issue is not with sound inside the plugin but is to route MIDI back to to Pro Logic.
Pro logic is the one to blame, it dos not support this.
And in reaper it only works is if you use the vsti plugin, the AUi plugin has the same limitation, apple to blame.
Still testing the plugin features, some issue pop, let me see if I find work arounds them.
Regards