Version 11.2.6130.

Generating a Site Traffic Summary report, Barchart Bandwidth, Sort by Bandwidth, ALL Servers - returns a mysteriously sorted report.

 

Once we opted to show 100 rows, we finally figured out that it's FIRST sorting "by server", THEN by the specified sort criteria (bandwidth).

 

(I don't believe this bug report forum allows me to post the PDF files of a "server traffic summary" vs. a "site traffic summary", which confirms the problem, and the ticketing system on your site won't let a customer with active renewal license post bugs).