This is happening while I’m working on the comp, rendering for preview or just moving within the timeline. In final output I have it set to “Use no proxies”, and have the processor settings such that, while a very slow render, it finishes without errors.
Before I learned about proxies, I was working with images this size and running into the same problem. My solution then was to restart After Effects whenever the error popped up, and then I could usually get another 5-10 minutes of work in before I got the error again. I was hoping that using a smaller proxy would allow me to avoid this error; but so far, that’s not the case.
Thanks,
Alan