Do not upgrade yet to El Capitan OS if you use After Effects a lot. When working on networked files it slows to an unworkable speed.
I’ve been on it for a while, but have only just noticed this as I’ve only been working in Maya recently and that is fine.
It appears to be a major issue involving smb sharing and whatnot. There’s some people discussing it here.
I’m just downloading an upgrade for AE now so will keep you informed.
One of the splendours of using After Effects and Maya together is being able to import cameras from one to the other.
I use this feature a lot and then the issue came with a scene I just working on. I tried many different things and eventually realised it was the scene that was triggering the problem. I wondered if it had picked up a glitch that AE didn’t like.
So my fix was, To make a new fresh scene, import the previously exported camera (the one AE refused) then to export it again from there. Then it worked.
EDIT: Ensure that the correct resolution is set in the render settings and the camera focal length also matches the original camera.
Paul Greer 