Hi,
– Are you using and 3rd party elementor extensions – that may add additional options/fields to the native posts widget? Modded posts widgets may not work.
– Can you try completely turning off all layers of cache, to see if not the aggressive cache is preventing the override?
– If there are any Elementor related search/filter or other search plugin active, please try de-activating and trying again.
I suspect this might be either a 3rd party script or cache issue. If you try a completely random phrase that should not yield anything on the results page, then Elementor does not seem to react whatsoever, try for example: https://*****elters.com/?s=asdasdasdasdasd