The rebar can't make and show in Revit?

Hi everyone!
I would like to set the rebar for connection 2 columns. I run dynamo it ok, not error, the rebar enought. But when I show the Revit, it is not enought the rebar. The Rebar is not match on 1 line don’t show. I try to make 2 point in this dynamo and use rebar.curve to make new rebar and… like begin. I don’t see it. please help, this is the project, picture and dynamo. Thank you so much! :(((

Hi @toantrungthach

Drop here dummy rvt file with top and bottom column.

Oh! we have 2 column in model, this is a picture Sir Kulkul!