Utilized import dashboard and pages disappeared

Has anyone else encountered the following:

 

I imported dashboards using the Import Dashboard option within the APP.

Renamed the dashboard from the generic name with the date and time of import. 

Lost all the page imports and am unable to create a new page or import the dashboard again and use the same naming convention. 

 

My end users are familiar with the naming conventions so I would prefer not to rename the pages. The image below includes the Points by Quarter name search and turns up the one page of Points by Quarter - .  I need the " -" removed.  

 

I have accepted rebuilding all the pages, but have not accepted changing the naming conventions. 

Thanks,