I have noticed this issue as well where the sort filter on price breaks for some searches. It's inconsistent and I'm almost certain it's a memory issue, but occasionally, if you filter and only show F/J cabins when running your search, it works fine 95% of the time. However, once you check off the Y cabin filter to show all results, Y pops up, but the ability to sort is broken about 20% of the time, likely due to having over 50 pages of results at that point. If you then de-select and show only J, it filters out and shows J only, but the sort by price remains broken until you refresh the page and redo the searches.