Running ServiceDesk Plus 10.0 Build 10006

I set up a custom report for our management team and then scheduled it to be delivered once a week, showing the previous week's survey results.

The filter option was set to "Survey Created Time" during "Last week".

For advanced filtering, I set "Rating Value" "greater than" "0" (to leave out survey results from those who clicked on "skip survey").

The initial report worked fine so I saved it and set it to run weekly as a scheduled report.

However, the first scheduled report came out and just showed "No data available to generate the report...".

When I look at the report now, the field for "Survey Created Time" during "Last week" now shows blurred numbers where the date range would be.  There's now also a second row under "advanced filtering" that just shows "--Select Column--" and "--- Select Criteria ---" (so it's a blank row)).

Running the report from the list of reports also yields the "no data available..." result.  If I click "Edit", do not make any change, and run the report from there, it works.

Any ideas?