When in the marketplace, if you use the search function (or at least apply a filter) the shop will only display a maximum of 25 results, and does not allow for going to the next page of results. 

Additionally, of the results that do display, some of them will not load. Attempting to load them will result in it saying that it was unable to connect to the marketplace, despite the fact that it functions fine with other ones, like you can fail to load an item, go into the next item no problem, then go back and that one will still fail. One of the ones that's having this issue is "ready sled go", another is "lucky present survival" - they fail regardless of attempt count, and regardless of whether others are working.