I am having a serious malfunction using Draftsight.  This seems to only appear after I have put many hours into creating a drawing model.

The during the design process, and with no apparent trigger mechanism, all of my dimensioning turns upside down for horizontally oriented parts and completely offsets to another location of the sheet for vertically oriented parts.  If I try to copy something, it too turns upside down.  If I import something, it too turns upside down.

Please help, as I am in the middle of a urgent customer project with over 35 hours invested in my drawing.