have same problem !! [plant 3d 2013 with service pack 2]
Hanger rotation defaults to horizontal orientation when copied or moved
for beam clamp hangers CSGH003 004 005 006 (and 001 002
007 008 009 are not affected by problem - behave as should
this is not the case in video... at 4:05
http://www.youtube.com/watch?v=mTBhhEw13D4