Most commands do not work in singleplayer or couch co-op on Xbox One Bedrock v1.21.84

Description:
In singleplayer and local couch co-op mode, only a limited set of commands work. The following commands function normally: ?, deop, gamerule, help, kick, list, me, msg, op, say, tell, tellraw, and w. All other commands produce no response or feedback when entered, making many commands unusable. This issue began about 1-2 weeks ago without any apparent change or update from the user.

Steps to Reproduce:

1. Launch Minecraft Bedrock Edition v1.21.84 on Xbox One.

2. Start a singleplayer world or local couch co-op session.

3. Open the chat/command window and try to enter any command outside the working list (e.g., /give, /tp, /gamemode).

4. Observe that no response or error message appears and the command does not execute.

Expected Result:
All valid Minecraft commands should work normally in singleplayer and local multiplayer modes, providing appropriate feedback or executing their functions.

Actual Result:
Only a small subset of commands respond or work. All other commands fail silently with no feedback or action.

Additional Info:

• No mods, add-ons, or resource packs are installed.

• Issue started without any user-initiated updates or changes.