Rebar bending

I am creating rebar with Create.FromCurves from #StructuralDesign package.
I put 2 cm offset but I get 1,2 cm. What is the reason? How to solve it? Probably is Revit issue, not Dynamo itself.
When I put some small bend diameter it doesn’t help.


could you please share the DYN graph of what you are doing? Also, what version of revit and dynamo are you using?