Open windows not on dropdown list

[davidcobi]

Select Window in the Menu bar... you should see a list of open windows (including the Recent Files window). Has anyone experienced these open windows disappearing from the list? I can tile the windows and see that they are still open. Thanks.

[patricks]

Do you have more than 9 windows open when that happens? Could they be hiding under "More Windows"?

[davidcobi]

Only a few windows are open and the list is empty.

[patricks]

I would just save, close, and re-open, or possibly close and re-start Revit, or even reboot the machine.