In case of export PDF of a two level group by or trend with group by the secondary tables and display grid enabled, the display grid is displaying JSON object rather then plain strings.
Ref. "Display Grid" and other field definitions:
Steps to Reproduce
- Create a report.
- Trend by with group by and display grid enabled.
- Export to PDF.
Notice the display grid in the the PDF output shows JSON objects serialized in the sub-tables column.
This issue is fixed, please review the Fixed In section to determine the latest available patch your instance can be upgraded to.
As a workaround avoid to enable the "Display Grid" option for those reports, or alternatively export the report using the browser functionality:
- Publish report to get the copy link.
- Open the link in browser.
- Click to print.
- Save as PDF.
Related Problem: PRB1303294