Customized controls reset when riding certain horses

Steps to reproduce:

1. Import and open the linked world: https://drive.google.com/file/d/1X3C1g97gmI9rrM3xkV6Id_zFhOQqNL3V/view?usp=drivesdk
2. Go to Settings -> Controls -> Touch -> Customize controls and move one of the buttons so that it touches the red area's border
3. Ride any horse near the house in the world

Observed result:
The buttons' positions reset.

Expected result:
The buttons' positions do not reset.

Original description:
When we use some horses, the controls work as we set them. But when we start using some, the controls reset themselves. I don't know if this is the case on other Minecraft platforms, but my original Minecraft running on the latest version released on Android 14 has this problem. I think all players using Android 14 have it too. Full version:   1.21.2.02

In the screenshots I have attached, the controls in the screenshots where I did not use the horse were my own personal controls. The controls are reset as shown in screenshot when the horse starts to ride