If I type username in search bar at the top of the website (mobile version) and press Search I don’t see the link to the user profile actually in search results. Though I can find the user with the same search bar on desktop version. I know that I can find user in “Users” section by his / her username but the placeholder (default gray text in search bar) states that I can search users with it and also behavior differs on desktop and mobile as I have mentioned.
Note: Actual for iPhone SE
Maybe it was caused in a specific situation?