World becomes grayscale and UI textures are corrupted when Fancy Graphics is enabled on Honor 400

When Fancy Graphics is enabled, Minecraft Bedrock displays incorrect graphics on my Honor 400.

The world becomes mostly grayscale, including the sky, terrain, trees, animals, and environmental textures. The game remains playable, but colors are rendered incorrectly.

In addition, some UI screens and textures appear corrupted or display visual artifacts.

When Fancy Graphics is disabled, colors return to normal and the game works correctly.

Steps to reproduce:

1. Launch Minecraft Bedrock on Honor 400.

2. Create or open a world.

3. Enable Fancy Graphics in Video Settings.

4. Observe that the world becomes grayscale and some textures/UI elements render incorrectly.

Expected result:

Colors and textures should render normally when Fancy Graphics is enabled.

Actual result:

The world becomes grayscale and some textures/UI elements appear corrupted