I don't know if you still have the issue. I´ve found that if I use my Native instrument "Komplete audio 6" sound card, it will crash but if I change it and use the internal audio card of my Mac mini it works: with other cheap card I've got it works too. So It's is something related the card.
There is another strange behavior. The first time I open the file it opens normaly, but the next time it doesn't. If I restart the computer it will work again the first time.
If I open the file inside VEP it works (with any sound card), but if I open it from other location e.x. desktop, it doesn't work with Komplete audio