Path Rule Tester does not work if the URL entered into the tester includes "?" and variables
Path Rules are only for modifying the path section of the URL. Path Rules don't affect the variables--the part of the URL that comes after the question mark. Just as you do not need to define segment rules for the schema and site portions of the URL (for example, for the URL "http://mysite.com/home", the first segment rule should be for "home"), you do not need to define segment rules for the variable portion of the URL either.
This issue is just a UI issue--this path rule will still work in reality. The Path Rule Test function returns nothing if the URL input to it includes the question mark (and subsequent variables). This test should echo back the variable section of the URL.
Remove everything from the "?" onward (including the "?" mark) when doing the test. (i.e. enter only the Path section of the URL).
Issue fixed in version 5.2.3. The latest version of Foglight Experience Monitor can be downloaded at https://support.quest.com/download-product-select