My client has just pointed this out to me. Look at her site here:
now on tags, see that Gluten Free has 25 tags.
If you click it it brings up a page with 5 results on.
Click next and you get another 5 results on page 2.
Click on next and although status bar show its on page 3 we still have the same recipies shown as were on page 2.
We are on Pulse 5.2