In This post I submit a request to unconnect beam/column joins and solved thanks to @blsalvio.
As I mentioned in response to the solution , although the connection issue was solved, some columns and bracings had weird behavoiur.
As advised, I started a new thread.
See attached details on page 2 of pdf file and revit model.ProvaCapannoneTutorial+DynForum.rvt (2.1 MB)
BeamColumnJoins_R1.pdf (301.1 KB)
Thanks in advance for your support.