Android : Move A Button Right

I used to play on PC, I decided to try playing on my new Galaxy Tab A (Samsung)

Options --> Gameplay --> Controls

There is an option to move the touch controls.
I can successfully move the A Button Up, Down, and Left.
When I try to move the A Button to the right, nothing happens

Even if I first move the A Button far to the left, I cannot move it right at all.

Hmm … It works fine on my phone.