Just a moment ago I used Insert Views From File to bring in a schedule from another project. I chose the project, and chose the schedule from the view list. Shortly after that, I tried to open that other project to copy/paste some stuff to my current project. For some reason Revit thought that other project's central file was still open, and gave me the message that the local and central file could not be open in the same Revit session.

Is there any fix for this other than closing out of Revit completely and reopening?