I have two layers, layer one (Mod. Ground) contains the items which make up my model, layer two (Wkg. Existing Ground) contains three VPs of layer one, all VPs are off to the side and show exactly whats happening on layer one.
I have set the layer visiblity and class visibilty to show/snap/all. I have checked both layers are visible and both are at the same scale, when layer two is active I can see layer one, however when I go to layer one, layer two is not visible. I have checked the VPs are in "none" class.
If I draw an object on layer two, that object becomes visible but the viewports do not.
I have done this on another renovation/addition job so that I can see my demolition and concept plan evolve as I alter items in the model.
After flicking between the two layers a few times my program just shuts down in the blink of an eye with no error messages or anything.