I don't know if it's worth mentioning, I receive this message 2 times when the error occurs, and must close the window twice. I would turn off multi processing or GPU stuff, but I think it no longer exists in the settings.
Make sure AE is up-to-date. If that does not fix the problem try rendering a digital intermediate of your shot with a suitable production format. Sometimes decoding MPEG camera original is a problem.
This seems to have fixed it. The files were 4K mp4s. I exported jpg sequences, and replaced the mp4s in precomps.