Can't load Families - Arch model based on Struct Model

[pwilson.112560]

Hi all -

I've inherited a strange project that was originally drawn in Revit Structure, and has since come into Revit Building. While there are many frustrations because of this transition (with default camera views, concrete materials, default section templates, and the like), I got hit with a new one this morning that will cripple me if I can't fix it.

I need to load new wide flange beam families into the model - all structure is exposed. Looking at my existing beams, there are both W-Wide Flange, and W-Wide Flange Shared. When I try to load a beam family from the Imperial Library, I get the following message:

"You cannot load a non-shared version of the family W-Wide Flange because a shared version of it is already loaded."

This message pops up even when I don't have a beam of that depth loaded under the Shared type.

Please help! Because our structural engineers are behind, there was just a decision to show the archetectural team's structure, and I have to have it updated within the week.

Thanks in advance.

Peter