Hi all,
Thanks for the responses.
After some testing, it seems that
- Ver 3.64 - can open ACAD 2010 files saved from ACAD 2013/2015
- Ver 3.65 - cannot open 2004/2007/2010/2013 files saved from ACAD
2013/2015 (this causes the Teigha error)
- Ver 3.70 - can open ACAD 2013 files (but, for some reason, is
missing the 90.1 compliance option)
So, back to 3.64 for this project.
Shaun