We are experiencing with our solutions that the load more products in the product list ruins the sorting that we have done on our product lists.
Often we sort our product lists from the catalog, which I suppose is the right way to do it. But because it does not set a URL parameter the load more products button, places a URL parameter "SortBy=Relevance" which overwrites the predetermined sorting from the catalog.
Which then ruins the sorting done here:
I suppose this is the code that causes the issue.