Importing CATIA V5 Files

Community,

I have been importing CATIA files into Creo ever since Unite Technology was introduced.  However, for the first time, I received a batch of V5 CATIA files that I cannot view after importing.  Sometimes I am able to view the geometry after showing the features in the layer tree.  But for the first time ever, I am stumped.  The files import, but I cannot see any geometry.  Any suggestions?  Thanks in advance.