Empty report generated when exporting custom report to CSV format.

• When exporting a custom report to CSV, the resulting file is empty (zero data). XML and PDF exports are working fine.
• reportd.log (less mp-log reportd.log) shows below error.

+0900 Trace: pan_reportjobmgr_thread - REPORTJOB: type PAN_REPORTJOB_EXPORT, id 2264
Traceback (most recent call last):
  File "/usr/local/bin/report_xml_to_csv.sh", line 343, in <module>
    parser.setContentHandler(LinksHandler(UnicodeWriter(codecs.getwriter('utf8')(sys.stdout.buffer))))
  File "/usr/lib64/python3.6/codecs.py", line 408, in __getattr__
    return getattr(self.stream, name)
AttributeError: '_io.BufferedWriter' object has no attribute 'buffer'

• Export CSV on ACC is also affected.

• Next-Generation Firewall or Panorama
• PAN-OS 10.2.17, 11.2.8, 11.2.9 or 11.2.10

Software Issue.

1. This issue has been fixed as PAN-297005.
2. Upgrading to the fixed versions will resolve the issue
3. The list of fixed versions are below
   • 12.2.0
   • 11.2.11 12.1.4
   •  12.1.5
   •  11.1.14
   •  11.1.13
   •  11.1.10-h10
   •  11.2.10-h2
   •  11.2.7-h8

Workaround:

• Generate the report in XML format and then use a 3rd party application like Excel to open the file and convert it to CSV format.