Form UI fails to display on servers

Summary:

When opening Form UI menus in Minecraft Bedrock Edition, the screen darkens as if the menu opened, but the UI never appears. The HUD and all touch controls disappear, leaving only the game world and other players visible. The player becomes stuck in this state and cannot interact with the game. The only way to exit is by pressing the Android system back button. This issue slows down gameplay significantly in modes that rely on shop menus.

Steps to Reproduce:

1. Join any multiplayer game mode that uses Form UI menus (e.g., shop systems on CubeCraft or The Hive).

2. Attempt to open a Form UI menu.

3. Occasionally, the screen darkens but the UI does not appear.

4. The HUD and controls vanish, leaving the player stuck until pressing the Android back button.

Observed Result:

The screen darkens, but no UI is displayed. HUD and controls disappear, and the player cannot interact with the game until using the Android system back button.

Expected Result:

The Form UI menu should appear normally, allowing the player to interact with it, and the HUD should return after closing the menu.

Additional Information:

- Tested on 4 different Android devices (Android 15.0) with different accounts.

- Happens with and without resource packs.

- Happens across multiple servers, so it is not server-specific.

- Game version: Minecraft Bedrock Edition v1.xx.x (latest at the time of testing).