Hoping this is an easy, dumb question. I fired up a project and loaded Spitfire Solo Cello that I had already been using (and recorded tracks with). After hitting one note, the player stopped working. When I play back already recorded tracks, they work just fine. It's like the keyboard just stopped communicating with only Spitfire Cello. I can select any other track and the keyboard works fine. Is there an easy solution to this problem? I'm getting no response with the board, from sound, to even mod wheel recognition. Thanks.