When a Reference is broken (in red) and I pick on [browse..] button to change it to another path, the name of the Referenceis still in red.
I have to close the Reference window and open it again to show the changes. It would be interesting an option called "Refresh" to refresh the list of References and status of them in the References window.

For example, Autodesk Civil 3D has a "Refresh" option in the context menu of each object in its Tool Space (palette).