Anyone experiencing play mode editor crashes in 3.5.6?

Unity Engine
1

Having just updated to 3.5.6 a couple of hours ago, I have now experienced at least 3 editor crashes when in play mode. I’m on a Mac, running Lion 10.7.5. Build platform is iOS.

Before today, I can’t remember the last time this even happened.

The editor.log is saying it’s a unhandled NULL exception.

2

Only method I’ve found for stopping editor crashes is to comment out huge chunks of code until it stops, then narrow it down. Log files haven’t helped; they seem to be out of sync with the actual crash.