- Is your Adobe software up-to-date?
- Is AutoCAD up-to-date with all service patches and hotfixes?
Please read and, or try the following:
@jggerth
What are you doing to 'export to pdf'? Adobe? native DwgToPDF pc3 driver? Bluebeam? CutePDF? PS Plotter?
There are innumerable ways to get from a DWG to PDF output, and the best advice I can offer is to try one of the other methods and see what happens.
A final though convoluted fix that always seems to work is to plot to a DWF, and then print the DWF to PDF. An extra step that shouldn't be needed, but it does seem to get around a lot of odd issues with PDF and Acad.
@pendean
Turn off LINESMOOTHING and LINEFADING in your LT2016 and see if that helps. If not, then go into GRAPHICSCONFIG cna turn off even more settings.
You can also post that DWG file here for others to look at if the above did not help.
@Unknown
We have same problem and we notice it was happening to all maps which have negative rotation in our data driven page. We make it same angle in positive by adding 360 to all negative value. It works perfectly for us.
I hope this solution work for everyone.
All the best.