Please Help! Project suddenly crashing on launch

Hello there @Apex14291!

Checking around the community for similar scenarios, this error (Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x000000002000000c) is usually related to either memory outage, or a graphics conflict. Since the log has calls to D3D12Core.dll, and FD3D12RayTracingPipelineState, the most likely cause is the second option.

Please try the following steps for resolution:

  1. Clean slate your AMD drivers (update to the latest version, or test the most stable iteration)

  2. Disable Ray Tracing in your project (if you cannot open it at all, disable it from the DefaultEngine.ini file with the line:
    [/Script/Engine.RendererSettings]
    r.RayTracing=False

  3. Delete contents from project folders Saved, Intermediate, and DerivedDataCache

  4. If all else fails, test by opening a new, clean project, and check if the crash occurs the same way

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