I've just updated to the latest version of Adobe After Effects CC 2015 (220.127.116.11) and my project file is not displaying certain video elements correctly within my compositions. Even attempting to convert them through adobe media encoder just gives me the same black boxes. I was the CamStudio proprietary codec for these .avi files since I was recording video from the screen using the camstudio program. I've tried un-installing/re-installing the codec, but that hasn't done anything.
Intel Core i7-4770 @ 3.4GHz
32.0 GB RAM
After Effects CC 2015 (18.104.22.168)
GeForce GTX 660