Broken SQL report since upgrade

I've encountered an issue since upgrading to NPM 12 where charts based on a SQL query have been broken.

Here's the query (specifics redacted):

SELECT a.[FACILITY]

       , SUM(a.[metric]) AS Actions

       , a.[endtime]

    FROM [database].[dbo].[table] a

    WHERE a.[endtime] BETWEEN DATEADD(dd,-30,GETDATE()) AND GETDATE()

     AND a.[FACILITY]  in ('FAC1','FAC2','FAC3')

GROUP BY a.[FACILITY]

       , a.[endtime]

ORDER BY a.[endtime]

       , a.[FACILITY];

It used to show up fine as a stacked area chart, but now it just says "Data is not available".

I have Actions as my data series, endtime as my time column, FACILITY on "Group chart data by:", and Actions on "Legend shows:"

Sample interval is every hour.  I've tinkered with switching around different settings, but I can't seem to fix the issue.

Thanks for any help.