the orthographic view at some distance can't produce enough visibility for the layers because at some point the horizontal lines become too small.
even if you choose view->look at all layers (which you tried first, right?)
what you can do is work in segments and choose some of the distant layers and select view-> look at selected layers function.
I tested out your situation and everything looks fine too me if I understood you correctly.
here's complimentary jpgs to illustrate the workflow.
tell me if that helped your situation.