WorkApps "The sheet you were trying to open has been deleted"

We have been noticing an error in WorkApps.  If a report or other Smartsheet object is clicked it will give the error message "The sheet you were trying to open has been deleted"

If I go to the dashboard itself there is no such error

 

I own the WorkApp, the sheets, the dashboard, all of the objects contained in the WorkApp.  A collegue is having the same issue with his WorkApps

 

Anyone else noticing this?