Bug Report: Unable to Launch Unreal Projects with DirectX 12
Description: I’ve been encountering an issue where I’m unable to launch my Unreal Engine projects (on versions 5.4.4, 5.3.2, and earlier) using DirectX 12. When attempting to launch the project, I get an error message (see attached screenshot). However, if I manually switch to DirectX 11, the project launches without issue.
This workaround is not ideal, and I would prefer to resolve the issue so that I can use DirectX 12 as intended. Could someone help me understand what might be causing this problem or suggest potential solutions?
Steps to Reproduce:
- Attempt to launch an Unreal Engine project (versions 5.4.4, 5.3.2, or earlier).
- Ensure DirectX 12 is selected as the graphics API.
- Launch the project.
- The error message appears, preventing the project from launching.
Expected Behavior: The project should launch successfully with DirectX 12 enabled.
Actual Behavior: The project fails to launch, and the error message is displayed (see screenshot).
Temporary Workaround: Switching to DirectX 11 allows the project to launch successfully, but I want to find a permanent fix for this issue.
System Information:
Unreal Engine version: 5.4.4 / 5.3.2
Operating System: Windows 11 Pro, Version 10.0.22631
Graphics Card: MSI GeForce RTX 4090 SUPRIM X 24G - Driver Game Ready 566.14
CPU: Intel(R) Core™ i9-14900KF
RAM: 64GB DDR5 Corsair Dominator
Additional Notes: I’ve searched online for potential solutions but have not been able to find a direct fix for this specific issue. Any help would be appreciated.
