Hi, I have logic pro 9.1.7 on Mountain Lion 10.8.6. I receive the error message system overload (-10011) with one only instance of AU like sylenth1, no other tracks and no effect plugins in that track. The monitor of CPU in logic goes to max and the sound start to be distorted, until the error message is showing and after that logic stops playing, but the yellow marker in the same monitor is very low and the HD monitor remains to 0. If I open and check the activity monitor the CPU load goes max to 20%, the Ram has 1,73 Gb free plus 700Mb inactive. How do I get it work? Thank you!