[MCPE] /scoreboard objectives setdisplay list no longer works in pause menu after update 1.21.120

Description:
After updating to Bedrock Edition 1.21.120, the command /scoreboard objectives setdisplay list <objective> fails to display the specified scoreboard data in the game's pause menu (player list). This functionality was working correctly in previous versions.

Steps to Reproduce:

1. Create a new dummy objective using the command: /scoreboard objectives add test dummy test.

2. Attempt to display this objective in the list slot of the pause menu using: /scoreboard objectives setdisplay list test.

3. Press ESC (or the platform-equivalent button) to open the pause menu.

Expected Results:
The "TEST" objective and the player's score (e.g., PlayerName: XXX) should be displayed normally next to the player list on the right side of the pause menu.

Actual Results:
No scoreboard information is displayed next to the player list on the right side of the pause menu. The area remains blank.

Additional Notes:

• This issue occurred after updating to version 1.21.120.

• Confirmed that the objective was created successfully and the player's score was set correctly.

• Using other display slots like sidebar may be unaffected by this issue.