Reports with Gregorian Calendar has issues with query while exporting and the data is getting changed in the exported report. - Known Error

Reports with Gregorian Calendar has issues with query while exporting and the data is getting changed in the exported report. Description When we view the report of Calendar: Gregorian Calendar in the instance we can see the report is displayed as individual Months but when we export the same report we can see the different behavior that the month's data is mixed in one row instead of displaying as individual months.

Looks like months are getting empty while exporting. Compare the attached screenshots to get more understanding.

Steps to Reproduce

1. Create a report with the below 2. Chart type: Time-series: Columns 3. Calendar: Gregorian Calendar 4. per: Month 5. export the report and see the individual Months are not populating and it will display a single month column.

Workaround Use a calendar type as a standard calendar as a workaround.