I have this problem too. It’s very frustrating. I have a zillion layers of oscillating branches on a tree. When I try to render all the branches with a dolly in, I get the orange blocks. If I break the project down into about 4 different renders, then start a new file with movs I can make it work, but then I run into a different set of problems. I’m going to switch to After Effects and see if I can work in it with more ease. I love Motion, but I run into so many problems with it quitting or not rendering that it’s driving me nuts.
Ellen
MacPro Quad Core 16 GB RAM Nividia GeForce 8800 GT