You should do the rotation in c4d and save and then it should update in your AE project. When you try to rotate it in AE I think it’s just trying to rotate the layer itself not the 3d obj in the scene.
It depends a lot on what type of 3d things you’re trying to rotate. That link seems to show 3 separate techniques about making 3d text. If that’s what you’re trying to do one of those techniques should work. If you’re trying to rotate a more complicated object- I don’t think AE has the capabilities to do that without buying plugins. If you describe what you’re trying to do maybe I can help you better.