I'm using Mainstage for live performance. In some instances, I load Kontakt instruments into patches. When I select the patch, there's no sound produced by the instances of Kontakt. If I open up the offending instrument, click the preset select button forward, then back to the patch I want, it's fine. But I can't be opening up the instruments in a live setting, trying to reload the samples. Note that some instances of Kontakt in the same patch will work. The particular failing Kontakt patches are in the Factory Library->Instuments->Band->Horns-> sax section (or trumpet section). Any suggestions are welcome.