Fly/swim up buttons are invisible when customizing controls with the "D-Pad & tap to interact" control mode

Steps to reproduce:

1. Switch to the D-Pad & tap to interact control mode

2. Enable Customize Controls (Experimental)

3. Create/enter a world if not in one already

4. Go to the Customize controls menu while flying/swimming

5. Attempt to change the location of the fly up/swim up button

Observed result:
The button's hitbox does not match with its visual location, making it seem invisible.

Expected result:
The button's hitbox and the button itself moves.

Video: