Quicklook no longer previewing Quicktime videos encoded in ProRes or Animation codec.
I noticed that after upgrading to OS X Mavericks that I am no longer able to quicklook preview (pressing the space bar when selecting a video file) within Finder.
This is a HUGE drawback for me as a video editor because I now have to open videos in VLC in order to quickly preview dailies.
I've noticed this happens specifically with Quicktime MOVs encoded in ProRes422 and Animation.
Mac Pro, OS X Mavericks (10.9)