2 days ago I purchased a Keylab 49 and installed the drivers on my Macbook Pro with Os X El Capitan. I downloaded Analog Lab from the Arturia website, installed it without any error. Ableton 9 recognizes the controller and Analog Lab works fine for about 20 minutes. After that, there's no sound, nor does the VST interface react to any actions made with the controller. The standalone VST has the same problem with the sound, the user interface however does work in this case. In short: I'd like to use Analog Lab for longer than 20 minutes. Is there any solution to this?