Copy Type Mark value and add to Family Type Name

Him there
I have a working script that copies the Wall “Type Mark” and adds it to the start if the Family “Type name”, but unfortunately it doesn’t seem to work for Doors for some reason. Anyone have any ideas please?

It is because you are trying to get the “Type Mark” which is a Type parameter from the instance. Connect the “Family and Type” node output which should be the Type to the “Type Mark” node and see if that helps.