We have been using EPDM for more than a year now and have always seen the above message on many drawings (see attachement).  We can't see any difference in the preview and the actual file.  This wasn't much concern among the engineering group, however, as more and more people outside the department gain access, this is causing many to question the reliability of the data.

Does anyone know what is causing this and how do we remedy the problem.  Is there any real difference between the preview and the actual model? In other words, is the data really unreliable as this warning seems to indicate?

Thanks,

Steve

SW2012 Pro sp5

EPDM 2015 sp5