We would like to randomly set a material to a shared family in a family.
Revit seems not to like our aproach and say that the parameter is read only.
We have a brick in a window family that randomly need to change the material.
This brick family is shared, the material is an instance parameter and is loaded into a window family.
We access the family through dynamo and asign these instances with random materials but the parameter is read only.
On the other hand if we drop the brick into the project environment the graph works.
This is something to do with the fact that this family is nested on another family.
Any idea how to work this out???