I have a project in which the MSBuild warnings parser finds a total of 60 warnings in 30 namespaces.  When the Warnings plugin shows the list of namespaces that have warnings:

• Initially, it has "10 entries per page".  The bottom line says "Showing 1 to 10 of 30 entries" as expected; but the page selector at the bottom right corner lists only page 1.  The page selector should list pages 1, 2, and 3.
• Then, I select "25 entries per page".  The bottom line says "Showing 1 to 25 of 30 entries" and the page selector correctly lists pages 1 and 2.
• Then, I select "10 entries per page" again.  The bottom line says "Showing 1 to 10 of 30 entries" and the page selector correctly lists pages 1, 2, and 3.