Toolbar button provides wrong action

[Robert ZZGG]

I asked this before, so let me do a better job of asking.
In the 'Home' tab, 'Paragraph' section, I am having a problem with a button.
The button originally had the "bottom border" icon. (I understand that the
changing of the icon is not a problem and reflects the previous action).
It has a drop-down menu.
I used the drop-down menu choice "borders and shading" to put a brown border
around some text.
After that, no matter what choice I make (clicking on the menu), I get the
original choice (a border around text).
Help would be greatly appreciated.

 

[Suzanne S. Barnhill]

Please refer to the reply posted to your identical question yesterday.