Hi guys, A VERY annoying bug in my FCPX. Im working on a project that has lots of random source material, mainly .mp4. Its a quick edit grunge type video/trailer only 2 mins long. Lots of the "bad tv" plugin and tv interference etc type stuff. The project was coming along fine then suddenly a trim, moving a file or moving some text would cause the preview window to go black. I can't see any of the video unless I restarted FCPX (even then sometimes this doesn't work) if I close the project in FCPX it'll play back fine in the preview window from the open projects section (random?) Its not rendering anything in the background when this occurs and the CPU isn't doing anything either. As I said I have lots of varied clips in variable quality, a couple of pictures, a light transition effect in one point (which seems particularly CPU intensive) plenty of the bad tv effect (and a couple of others) and some titles. But thats all. Doesn't' seem anyone else has this bug on the net. But as soon as I find, for instance a trim that cause it its reproducible. If I undo the trim, the video comes back, if I do the trim again, it disappears. Very annoying! Any idea what could be causing it? Is it the plugins, my title text (they have bad TV on too ) something else? Anyone else aware of this?