This happens if you have wiewed a profile before, search screen scrolls to top. Example on my screenshot, Donnaruma is first result on my search, i watched his profile, then scrolled down to see profile of Emiliano Martinez, when i go back landing again top of search results.
https://www.mediafire.com/file/2nky7wqudab5sno/FullSizeRender.MOV/file