Tooltip in start menu

I clicked on the start menu and used the search text field to look for
calculator. I had typed "cal" and saw Windows Calendar. Curious I quickly
clicked there, saw a calendar pop up and immediately closed it. The tooltip
from the Windows Calendar stayed on though grey and somewhat in the way.

I had to bring the start menu up again with the calendar, go over the link
of calendar to make the tooltip appear again and go away.