Sales Portal - Duplicate Results Page Sort Bottuns

From the Work with Prospects page, when selecting the Search for Prospects Duplicates, the search displays correctly, but the report sort buttons at the top of the report no longer work.

Did a boundary test and the sort buttons still work in the normal search results page.

This is probably a regression of an unknown origin because the code has not been modified and to the best of our recollection used to work. Might be customer specific problem.