Hi,
It happens, because when scrolling, a different menu is displayed with a different search bar, not the one where the search was performed – and the results cannot attach to an invisible element.
There is a built-in detector script, which I have enabled here: https://i.imgur.com/qvPmw9O.png
It is not perfect, but it will try to hide the result if it detects that the search bar is not visible anymore.
