I have tried many upon many online tutorials base on the 2015 (13.5) Update, but nothing seems to work.
It's seems that After Effect, or this update at least, can't seem to preview my project without skipping over the sound. Not just that but the render for the preview is extremely selective and will only run little snippets at a time. I've allocated about 2 out of the 4gbs of ram I have in my computer, yet it's still choppy. Is there anyway to fix this?
Nobody can tell you anything without proper system info or other technical details. That aside, yes, the CC 2015 version is jinxed and a bug fest, so get back to CC 2014.