Meaningless UI that appears in the Copy Coordinates section

Probably related to MCPE-162567.

Between the Copy and Paste buttons is the UI representing the Y button, but pressing the Y button does nothing.

Steps to Reproduce
1. Enable Copy Coordinates option
2. Open the chat, check that the Y button is displayed on the Copy Coordinates UI, and press the Y button

Expected Results
Either there is some behavior or there is no UI.

Observation Results
Nothing happens.