Problem with Cubase Elements 7

Hi. I want say about problem work in Cubase Elements 7. In October i update my OS X Yosemite. After that I started having problems with Cubase Elements 7. The fact is that when I create more than two midi tracks program stops working and crashes. And so it goes on for more than a month. I purchased the program on the official website. I thought at first that it was because of the plug-ins and instruments. All removed and reinstalled the problem remained. Please tell me what to do to proramma start to work normally.

You did not list your system specs but maybe this applies…

Regards :sunglasses: