Is Poppy Playtime – Chapter 5 crashing on startup with a LowLevelFatalError, D3D12RHI, or GetClockCalibration error? You’re not alone. Many players are experiencing a DirectX 12 (DX12) crash that prevents the game from launching.
The good news? You can fix this in under 60 seconds by forcing the game to run in DirectX 11 mode. Follow the simple step-by-step guide below to fix the ch5_pro.exe DX12 startup crash.
Full Game Download: https://gamedrive.org/poppy-playtime-chapter-5-2026/
Quick Fix: Force DirectX 11 Mode (-dx11)
This method works for most users and immediately stops the DX12 crash.
Step 1
Locate your Poppy Playtime – Chapter 5 desktop shortcut.Right-click it and select Properties.
Step 2
Right Click in icon and Click Properties.
Step 3
Open the Shortcut tab.
Step 4
In the Target field, go to the end of the line.
Add a space, then type:
-dx11
Example:
...\Poppy Playtime - Chapter 5\ch5_pro.exe -dx11
Ex: "C:\Users\lacia\Downloads\Poppy Playtime - Chapter 5\ch5_pro.exe" -dx11
💡 Why Does This Fix the Crash?
The LowLevelFatalError D3D12RHI crash happens when Unreal Engine 5 fails to properly communicate with your GPU using DirectX 12. This often triggers the error:
GetClockCalibration failed (E_FAIL)
Crash in runnable thread RHISubmissionThread
By forcing DirectX 11, you switch to a more stable rendering method that avoids the DX12 timing calibration issue.
This Fix Helps If You Have:
- Older NVIDIA GTX graphics cards
- AMD GPUs with outdated drivers
- Gaming laptops with integrated graphics
- Windows 10 systems without latest updates
🔧 Additional Fixes (If -dx11 Doesn’t Work)
- Update your NVIDIA / AMD GPU drivers
- Disable Steam or Discord overlays
- Verify game files
- Restart your PC after applying changes
- install VC 2022 Redist,VC 2019 Redist,DirectX Jun 2010 Redist,NET 4.8 Redist
Most players fix the issue instantly using the -dx11 launch command.
If this guide helped you fix Poppy Playtime – Chapter 5 DX12 crash, share it with other players who are stuck on startup!
