At work we have been having this strange issue with xrefs. We use xref a lot as we share our maps (drawings) to be used with various other drawings. Sometimes we will notice that objects on a certain layer will not display on the xref, even though that layer shows up on the layer properties manager and is turned on and thawed. The problem only occurs when the xref has been clipped (if you remove the clipped boundary the objects magically reappear, but they then will disappear again when xclipping.) If you move those objects to an existing layer, save and reload the appear, but if you move them back to the original layer they will again disappear. After some experimentation we then then noticed that if you create a new layer, draw some objects on that layer, save then reload that xref, then in the other drawing that the objects on the new layer do not show up (but do show up in layer manager), and the other layer that was previously missing now appears. Delete that new layer and purge it out, save and reload the xref and we are back to square one as the original problem then occurs. My best guess is that the last created layer is the one that does not show up? I have tried to replicated this problem on a smaller, simpler drawing but of coarce every thing works fine. Has anyone else come accross this?
