I’m sorry to hear that you won’t be around as much as your insight and sense of humor have been mainstays of my Creative Cow After Effects Podcast experience. We can all relate to the responsibility that raising a child and supporting a growing family requires. Thanks for everything you’ve gone up to this point and good luck with whatever you do in the future.
I’ve encountered this error message when some part of the footage is corrupted. You might be able export an uncompressed QT from your footage and use that.