I Almost forgot the App. Thanks for reminding us
Same situation here, no orchestration sound from the orch. Although the sound test is ok, playing the target sound ok, and the database loaded, the filter boxes unchecked I even managed to export a 10 MB wave file, unfortunately it is mute ??? (for notification : right-clic on the clef to export orch).
Searching for a work around, I wanted to export the orch xml and play it in an orch max patch but, obviuosly, the path to the database is not embeded and it needs some bach tweaking to reload the paths in the 9th slot of each note (a todo list for other situations)
In the meantime, you can export an xml file (right-clic on the clef) and load it in a DAW or Open Music but of course we lose all the instruments playing styles if we use other data bases. Beware, midi channels are incremented for each system… Well… it is not the most suited solution but quite enough to have (a far away?) impression
Hope it helps