Only these custom Shared Parameters give me this problem. All the other fields total fine.
Looking into the model you attached earlier in the thread, it looks like this is a Material Takeoff Schedule, which may be prevent you from doing this. Can you create a standard Quantities/Schedule and see if you can use 'Calculate Totals' with your Shared Parameters?
⁞ Corey D.⁞ Please let the saying "The only stupid question is the one not asked" not be seen as a challenge to defy it.