@User: GDS is not a two-way street for magic. You cannot read GDS back into magic and expect to get the same layout as you started with. Unfortunately the caravel build has been based on this false premise and I expect we will be spending all day sorting out what really should be done instead. That said, though, magic should not normally have a problem reading back a simple dvice like that. I did a quick test of writing out a pFET and reading it back in and had no problem with it. Is the device a simple 1.8V pFET? What is the DRC error being reported in those areas?