Nintendo Land (Zelda: Battle Quest) - Neon color glitch and vertex corruption on Steam Deck (AMD/Vulkan)

Current Behavior

When entering a tunnel or scene transition inside the Zelda: Battle Quest minigame on Nintendo Land, the graphics instantly break. The screen fills with neon pink and green glowing colors, textures corrupt, and the visual glitches sometimes bleed into other levels upon booting them later.

Expected Behavior

The scene transitions and tunnels should render cleanly with normal textures, colors, and lighting, matching the performance noted on the Cemu Wiki for version 2.0-72.

Steps to Reproduce

1. Launch Nintendo Land (.wua format) on Steam Deck using the Vulkan backend.
2. Enter the Zelda: Battle Quest minigame.
3. Progress through the level until the first tunnel/scene transition triggers. Took a few levels for initial issue to start.
4. Observe the immediate breakdown of geometry shaders into neon artifacts.

System Info (Optional)

OS: SteamOS (Stable Branch) / Linux GPU: AMD Custom GPU (Van Gogh / RDNA 2)

Emulation Settings (Optional)

No response

Logs (Optional)

log.txt