Why is my weldment cut list empty?

I just updated to Solidworks 2015 sp 4.0 and now my cut list wont populate. A standard bom works fine and I have excel obviously. I checked that the template was in the correct folder and it was pointing to it. Any ideas please? I have repeatedly updated the cutlist in the model but it has made no difference.

SolidworksDrawings And Detailing