Also experiencing some alarming problems. Was trying to Render a Timelapse today shot with a 7D. Computer completely froze up twice and I was asked to “Restart the Machine.” All this is happening after I recently updated FCP X to 10.0.3 and the latest OS X update. Lost about two hours of work today and eventually had to cut and paste the timeplapse in a new project which seemed to free up the system temporarily.
I would view the activity monitor and watch the system methodically eat away at the available ram. This whole FCP X is completely mad.
Brandon Leigh