This morning, I noticed that the "File Explorer" and "Settings" menu items have disappeared from the Start menu.

I manually typed in "Settings" and pinned it to the Start menu, but it showed up as a tile, which was not my intent. I removed the tile, and both "Settings" and "File Explorer" magically appeared in the Start menu (not as tiles) again.

What's going on here? Does Windows 10 automatically eliminate menu items from the Start menu if they are not being used often?