I find this overlooked regularly. Each link has an Instance AND Type parameter called Workset. If we select a link (RVT) in the Project Browser we can see the Type parameter for workset, even if the link isn’t loaded.
If we right-click and choose Select All Instances > In Entire Project we can see the Instance parameter value, unless there is more than one instance (copies of the link).
The best way to ensure that both parameter values are assigned to the same workset is to make sure the Active Workset is set correctly first. If not then you have to check both values.
Why are there two parameters?
The Type parameter governs the existence of the link in the database while the Instance parameter governs the actual instance you can see in the model views. The linked file can be copied, for example House Design A can be copied so we can show that it will be located on several lots within a…