I am unable to change the material of the Baluster in the Railing even though I am able to change the material of Rails. I even tried making a new Baluster and assigning it a Material Parameter and giving it default material. The Material Parameter does not show in the file I put the new Baluster and the material was all different from the one in the family. Also how can I update the already loaded family. Revit does not take the changes in consideration if the family is reloaded.

Thanks in advance.