Is anyone familiar with this object type? I searched this site and found nothing.
The attached file apparently contains these object types, though I suspect it is corrupt in some fashion. If I do a save as <new file name> I get this:
Command: _saveas
*Warning* Multiply owned object, handle "584"
*Warning* Multiply owned object, handle "794"
*Warning* Multiply owned object, handle "CEB"
*Warning* Multiply owned object, handle "E23"
All those handles refer to AcDbSun object types, which apparently do not reside in either model or paper space.