I think it was a problem with loadouts.
When I cloned my gang, it moved the weapons to the equipment box above loadouts, and then all the calculations were correct.
So as a quick fix, don't use loadouts with a dual wielding miniature. This is obviously less helpful with leaders and...
The tools here are great, much kudos to the developers.
Just a very specific bug to report.
When you purchase two identical pistols for a model (this happened with a champion and a ganger, Orlock gang) it is listed as Autopistol x2, or Stub Gun x2.
Then, when you add this to a loadout...