Navisworks crashes when loading a prosteel model

This is the error we get when loading this model in navisworks. The file opens properly in autocad/prosteel and appears to have no issues. Also other models open fine in navisworks and it appears that the problem is isolated to this particular model. 

We're using navisworks 2016 and Prosteel V8i select series 6 in autocad 2016. Any suggestions would be appreciated.