That is most peculiar. I have not seen this happen before on a stock website. It would seem though thatr your site is a bit modified so that might explain what’s going on. Could we try confirming that is the case, and if so isolate it down to what is reversing the order? This guide walks you through how to test for a conflict, and then identify what is conflicting. If you walk through is it perhaps your theme that is causing this? Would you mind sharing a copy of it with me?