Hi.I'm using autocad 2016 lt, and I have encountered a strange problem:Suddenly ellipsis in xrefd layers are not showing in paperspace.  They show in modelspace and in plot preview, but not in paperspace. No layers are locked, freezed or not-plot. They re-apear when i activate and regen the xrefed viewport, but disapear again when i save and Close. Very annoying indeed. Any ideas?