I can't reproduce the issue either. Maybe it went away when I fixed some of my models.
However, I still don't understand how I can add models from my Datsville directory. I added the path to the search vector as a "User Folder" type. When I click on the "Model (content) overview/information groups" button I get five sub-buttons: "All models currently loaded", "Content of current models file", "All models used by the current model (recursively)", "All parts used in the current model (recursive)" and "All parts used in the current step". There's no option for "All models in the search path".
However, I still don't understand how I can add models from my Datsville directory. I added the path to the search vector as a "User Folder" type. When I click on the "Model (content) overview/information groups" button I get five sub-buttons: "All models currently loaded", "Content of current models file", "All models used by the current model (recursively)", "All parts used in the current model (recursive)" and "All parts used in the current step". There's no option for "All models in the search path".