Hardware Raytracing on Lumen can cause a crash on AMD Radeon GPUs

Hardware Raytracing support can cause a crash on AMD Radeon GPUs when creating the RT pipeline state.

1. Enable Hardware RT support in Lumen
2. Restart the editor
3. After some period of time or on level transition, the editor will crash

Reproduced on AMD Driver 25.6.1 (Released 26May2025).

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x000000002000000c

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D3D12Core
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UnrealEditor_D3D12RHI!FD3D12RayTracingPipelineState::FD3D12RayTracingPipelineState() [D:\build\++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12RayTracing.cpp:2956]
UnrealEditor_D3D12RHI!FD3D12DynamicRHI::RHICreateRayTracingPipelineState() [D:\build\++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12RayTracing.cpp:3471]
UnrealEditor_RHI!FCompileRayTracingPipelineStateTask::DoTask() [D:\build\++UE5\Sync\Engine\Source\Runtime\RHI\Private\PipelineStateCache.cpp:3587]
UnrealEditor_RHI!TGraphTask<FCompileRayTracingPipelineStateTask>::ExecuteTask() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Async\TaskGraphInterfaces.h:706]
UnrealEditor_RHI!UE::Tasks::Private::FTaskBase::TryExecuteTask() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Tasks\TaskPrivate.h:527]
UnrealEditor_RHI!LowLevelTasks::TTaskDelegate<LowLevelTasks::FTask * __ptr64 __cdecl(bool),48>::TTaskDelegateImpl<`LowLevelTasks::FTask::Init<`UE::Tasks::Private::FTaskBase::Init'::`2'::<lambda_1> >'::`13'::<lambda_1>,0>::CallAndMove() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Async\Fundamental\TaskDelegate.h:171]
UnrealEditor_Core!LowLevelTasks::FTask::ExecuteTask() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Async\Fundamental\Task.h:627]
UnrealEditor_Core!LowLevelTasks::FScheduler::ExecuteTask() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\Async\Fundamental\Scheduler.cpp:387]
UnrealEditor_Core!LowLevelTasks::FScheduler::WorkerLoop() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\Async\Fundamental\Scheduler.cpp:724]
UnrealEditor_Core!`LowLevelTasks::FScheduler::CreateWorker'::`2'::<lambda_1>::operator()() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\Async\Fundamental\Scheduler.cpp:188]
UnrealEditor_Core!FThreadImpl::Run() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\HAL\Thread.cpp:69]
UnrealEditor_Core!FRunnableThreadWin::Run() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\Windows\WindowsRunnableThread.cpp:159]