About model and data exchange with 3rd party solutions: Revit, Solibri, dRofus, Bluebeam, structural analysis solutions, and IFC, BCF and DXF/DWG-based exchange, etc.
I have just ran into this same situation. What would be the reason why? I am able to work around it by unloading the xref and then the reload option becomes available but I haven't had to do this in other teamwork projects.
