I Have Mixcraft 6 Pro Studio with the latest update and the latest update of Spark software.
I use Edirol FA-66 Firewire controller to input Spark midi input to Mixcraft, Spark is also connected via USB. Spark's plugin registers in Mixcraft, I select Spark controller in preferences. Spark appears in recording line, set to all midi channels and when you press record, Mixcraft shows that it is recording with a red bar going across and when stopped there is no playback since nothing is recorded. It should show a green bar where it is recorded. Any idea why it is not working? I have contacted Acoustica tech support and they have not had any solutions. I would hope you get in touch with them to work out the issues keeping it from working. It surely must be a quick fix since everything is set up and is working but no drums being recorded.