There was a bug that can't be fixed, but you can easily fix it manually. Just follow this step:

1.Right-click on desktop
2.Select Personalize
3.Choose 'Window color' in the bottom column.
4.Choose 'Advance appearance settings'.
5.In the item section, choose 'tooltip'.
6.Change the 'color'(not color1) from grey to white.

Best luck and thanks for any support^^

