if you check the activity monitor when you are not rendering, do you see the aeselflinks working? this can happen if ae crashes while rendering with mp on and then you restart ae and will definitely effect performance.
Hi Kevin, thanks for your reply.
AE had in fact crashed prior to these problems, so after booting up today I have tried the same tests. I turned multiprocessing off, and am trying to render the same solo’ed layer (sorry if this spelling of solo’ed is annoying, really cant think of what else to call it).
There are no instances of aeselflink running, but im still getting an hour’s hang before render starts. I do generally use pre-rendering, but in this case I assume it doesnt apply, as I am only trying to render a single solo’ed layer.
As I mentioned in my original post, importing the soloed layer to a new clean comp renders with only a minute’s pause- this leads me to think that the size and complexity of the project file is the cause of the pause, even if I am only dealing with one solo’ed layer. Are system resources tied up in dealing with the project file? Is there any way i can reduce this without pre-rendering everything?