I have a quite huge project (space colony) using symmetry. To organize and be able to hide stuff, I created several layers. Working with the symmetry OFF goes quite well. Enable Disable Layers does work relatively quickly. But once the symmetry is ON, it's a nightmare.
Could it be that the layer hiding is handled after the symmetry? That first C4D does enable all objects in the symmetry and then hide the layers?
and shall one get ride of the symmetry when done? And if yes; how to do it?