Hi, I have a curve object which disappeared after I switched back from one scene to another. It is still visible in Edit Mode but not in Object mode and it is not rendered. I am puzzled…
you cannot render lines mesh or curve
too small one pixel wide!
Yes, I can because of a shadeless wire material. At least as long as the effect from above does not happen.
Can you post a .blend file or a picture of your problem?
It may just be hidden.