[Chris Babbitt] "Is anybody else experiencing this?"
I have never seen this error on any of our systems. If you opened a file in another app while FCP was open, then I would guess you would see this error. I would suggest you restart the machine and only run FCP when you re-launch.
But I've not seen this nor have ever heard from any other editor I'm in contact with about this error.
Walter Biscardi, Jr.
http://www.biscardicreative.com
HD Editorial & Animation for Broadcast and independent productions.
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