The Finder application template does not honor the filter set in a web map. The template shows the features which are not displayed on the map in the drop-down options.
Last Published: October 10, 2015ArcGIS Online
Bug ID Number
September 30, 2015
June 11, 2020
After review by the development team, it has been determined that this issue is related to a known limitation with the software that lies outside of Esri's control. The issue's Additional Information section may contain further explanation.
this is a known limit with the finder, use the basic viewer or map tools instead.