I noticed this strange problem when when I was using Final Cut Pro. The top left corner of the display does not appear. The same can be seen on the image below.

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I left it for a while and when checked, It seemed to have turned black.

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This has happened over a few times to me in the past only when starting to use FCP.

Hardware and Software

  • MBP 13 inch, Late 2011 - OS X Mavericks 10.9.4
  • Final Cut Pro 10.0.8


  1. What was the reason this could have occurred?
  2. Is there anyway to solve this without having to "reboot"?

Updating Final Cut Pro from 10.0.8 to 10.1.2 has solved this problem.

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