We recently began upgrading from LDT 2007 to Civil3d 2014. We have several subcontractors that will not be upgrading just yet. Our problem is that once you save 2014 file to 2007 the points disappear in LDD and you can't attach the 2007 file to a project to reattach them either. We are in need of a temporary fix to this problem. Does anyone have any ideas? Could use some help. Thanks.