Filters not functioning properly for past two days

I use CarGurus VERY frequently.  Filters have not been functioning properly on 3/29 and 3/30.  Example:  Searching nationwide for Used Honda Element, All Years results in 470 listings.  Of those 470 listings the results show that 33 of them are equipped with manual transmissions.  When the box to display only the 33 manual transmission vehicles is checked the screen looks like it resets, the box for manual transmission remains checked but the 470 original results continue to display.  Both the automatic transmissions AND manual transmission vehicles are shown despite the filter for manual.  This problem seems to have started on 3/29 and continues.  I've tried this on other vehicles with the same results.
Thanks for reading and in advance for remedying