🎮 Game Error Codes What it means & how to fix it

Reanimal — LowLevelFatalError / Unreal Engine 5 Crash on PC

Reanimal (Tarsier Studios, THQ Nordic, 2026) runs on Unreal Engine 5, so its crashes surface as a LowLevelFatalError — most often when UE5 fails to decompress shaders on Intel 13th/14th-gen CPUs with the known overvoltage fault, or as an Out of Video Memory crash. The fixes most players miss: the CUDA Sysmem Fallback Policy toggle and Windows 8 compatibility mode. Here is each cause and the fastest fix.

Error codes

LowLevelFatalError (Unreal Engine is exiting) at launch UE5 hit an unrecoverable fatal error while starting up

Cause: UE5 fails to decompress shaders on Intel 13th- and 14th-gen CPUs due to their known overvoltage instability.

Fix:
  1. Right-click Reanimal.exe -> Properties -> Compatibility -> run in Windows 8 compatibility mode — this clears the shader-decompression LowLevelFatalError for most Intel 13th/14th-gen rigs.
  2. Update to the latest Intel microcode/BIOS (0x12B or newer) that fixes the 13th/14th-gen overvoltage fault.
  3. Set the CPU performance profile to 'Intel Default Settings' in BIOS to stop the voltage spikes behind the crash.
Out of Video Memory trying to allocate a rendering resource UE5's classic VRAM-exhaustion crash

Cause: VRAM overflow, common on UE5 titles with Lumen and high textures.

Fix:
  1. Enable 'CUDA - Sysmem Fallback Policy' -> 'Prefer Sysmem Fallback' in NVIDIA Control Panel to let the game spill into system RAM instead of crashing.
  2. Lower Texture and View-Distance quality one notch and cap the frame rate.
  3. Close background GPU users (browsers, overlays) before launching.
Crash at a specific point mid-game Game reliably crashes at one scene or transition

Cause: DX12 instability on that scene's effects.

Fix:
  1. Force DirectX 11 by adding -dx11 to the Steam launch options — fixes reproducible mid-game crashes for many players.
  2. Delete the NVIDIA DXCache and rebuild shaders.
  3. Verify integrity of game files in Steam.

Fixes that work for most Reanimal (PC / Steam, Unreal Engine 5, Tarsier Studios / THQ Nordic) errors

  1. Run Reanimal.exe in Windows 8 compatibility mode and update Intel microcode/BIOS — the two fixes for the Intel 13th/14th-gen shader-decompression LowLevelFatalError.
  2. Clean-install the latest GPU driver with DDU and install the newest Microsoft Visual C++ Redistributables (x86 + x64) plus the DirectX End-User Runtime.
  3. Enable CUDA Sysmem Fallback for Out of Video Memory, force DX11 for scene-specific crashes, and verify game files in Steam.

FAQ

Why does Reanimal crash only on my new Intel CPU?

Unreal Engine 5 fails to decompress shaders on Intel 13th- and 14th-gen CPUs affected by the overvoltage fault. Updating to Intel microcode 0x12B+ / BIOS and running in Windows 8 compatibility mode resolves the LowLevelFatalError.

How do I stop the Out of Video Memory crash?

Enable 'CUDA - Sysmem Fallback Policy' in NVIDIA Control Panel so the game spills into system RAM, and lower Texture/View-Distance quality to reduce VRAM pressure.

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