Find Reference Updates... causing X6 freeze on Mac

The command References/Find Reference Updates… is causing X6 to freeze if applied to a certain reference when running on a Mac running Mountain Lion. This happens with both an iMac mid-2010, and a Mac Book Air 2012.  The function works normally on an Windows XP machine with the same reference. The reference is to a book and is attached.

AKILLEEN.txt (296 Bytes)