I am having this similar issue with Adobe After Effects CC 2014 Version 13.0.0.214 where it keeps popping up a message box about not being able to render a frame. I meet the system recommendation of 8GB memory for CC 2014 based on the following page.
http://helpx.adobe.com/after-effects/system-requirements.html
My RAM fills up very quickly as I RAM preview in AE (Using Control key with scrubbing) and watch my Task Manager performance tab.
I tried enabling that cache checkbox option in AE but it doesn't help. It's really frustrating when AE gets stuck in a constant loop of trying to acquire memory and that message keeps popping up. I have to try and save and then force quit the application to release the memory usage. I have already tried closing background apps that I don't need running.
Here are some screens.
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You will see Chrome, SnagIt and a few others running in this screen because I was putting together this post. As I've mentioned earlier, I've already tried closing these background apps previously.
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