Time series report group by field showing empty

[Dale Cameron]

I am creating a report on the Incident table for some custom fields we have added. The problem I'm having is when I group by 'Unauthorized Change Resolution' (a choice type field with 5 possible values including none) they are coming up as empty even though all record have a value. You can see in the screenshot attached/below that in the table it is showing 3 groups for Feb and the count for each, this matches the data. The report knows the values are different and is grouping them appropriately, but since the field value is also coming through as empty the report is unable to display correctly. If I change the report type to anything other than a time series report then the data displays correctly, but then it is not grouped by month. 

I have checked ACLs and the fact that it works with other report types makes me think it is not a security problem, but a bug of some sort in the time series reports.

I have also attached a screenshot of the regular bar chart so that you can see that the data comes through correctly. 

thoughts?

Time Series Screenshot

Normal Bar Chart Screenshot

[SanjivMeher]

The Grouping also doesn't show on the bars in your report. Can you switch to classic view and try it? Also try grouping by other field and check if that works.

[Dale Cameron]

Thanks for the reply,

I have tried both of these. The Classic view gave me the same result with Unauthorized Resolution field. 

I tried assignment group and the state and both worked just fine in the time series report

[SanjivMeher]

Not sure. Is there a record with some value in that field which is not in the defined Choice List?

[Dale Cameron]

There are only 10 records that meet the critiria(in Dev), so I checked all of them and they all have a valid value in the choice list.