Steps to reproduce the problem:
1. Open the attached report in EUD
2. Ensure its RuntimeSettings contain parameter "EnableAccessibility" set to True or add the setting before opening the designer in its configuration file
3. Preview the report and export it to PDF
The produced PDF is tagged (accessible) - check it in Acrobat Reader's file properties in the bottom left corner. The file size should be ~155KB
The produced PDF is not tagged (accessible). Its size is ~123KB.