I have been working on a project in After Effects that includes many comps. with a lot of muzzle flashes and other pre keyed action effects. Recently, when I opened my project all the effects appeared white. They still have their detail and play out, but no color except for white. This hasn't changed for a few weeks. The blending mode is normal so I'm not sure what else to do. I have also cleared my cache and still no change. I am using After Effects 2015.3. Any help is greatly appreciated.
Convert the footage to another format. There is any number of issues with PNG-encoded Quicktime files such as the ones from numerous action packs.