SegmentedButton, but not SegmentedControl, when covered shows thru

I have a listbox which changes height when a mouse enters the control.
It’s height is more than enough to cover several controls.
For some reason a SegmentedButton (but not a SegmentedControl) shows thru and disturbs the selection by a mouse of the listbox.
Both SegmentedButton and the SegmentedControl are enabled.
Also I can still cursor down the listbox to select the line I want.

I ran a very simple test project (nothing in the listbox) and the control doesn’t show thru.


Update. I added text to the listbox and that wasn’t the problem.

I found a cheap solution. Make the buttons invisible.