So recently I've noticed that when I ram preview I leave it for a while as it takes long to render for some reason and AE is sometimes using over 20GB RAM. When I stop the playback, I then go back and press play to watch it and often it has to re-render again even though no changes have been made and the green bar (indicating which frames have been cached) is still there. Also if I drag and drop audio into the timeline I have to re-render/cache too, I don't think that used to be necessary and I don't understand why it would be now if the only alterations are audio not visual. does anyone have any suggestions on how I can fix these issues?
Sorry, but we can offer little help. We don't know anything about your machine -- including OS version down to the last decimal point -- your precise AE version, third-party cards & driver versions and other significant hardware.
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA