Issue with refresh having a warning icon

I have an schedule icon with a (\) symbol on it.  as you can see the datasource just refreshed and it is set up to refresh tomorrow.

when I click on the icon to go to the scheduler, schedule is greyed out.  If I open the gateway connection it processes and displays the correct gateway - and then the scheduled refresh becomes active again.  Even if I go into the schedule and make changes and save them and exit back to the workspace the schedule icon is back with the warning.  Repeat the above steps and everything is exactly the same and no changes occur.

This is new.  How do I get this fixed?  I assume it needs to be fixed somehow even though the refreshes are completing and updating correctly.