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Crash after started Standalone Game or VR Preview

Hi,

I get a crash everytime I start the Standalone Game or VR Preview. It’s basically a blank Level which includes the Dedicated Server tutorial. Everything is fine with the builded game, tho.

I really appreciate any help. Thx :slight_smile:

LoginId:7b7cb6f14e071c0e8226878827d09196
EpicAccountId:d0dbf39e0600414682cc7d182ee39a57

Assertion failed: IsValid() [File:F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\Core\Public\Templates/SharedPointer.h] [Line: 890]

UE4Editor_Core!AssertFailedImplV() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:104]
UE4Editor_Core!FDebug::CheckVerifyFailedImpl() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:461]
UE4Editor_SteamVR!FSteamVRHMD::BridgeBaseImpl::Present() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Plugins\Runtime\Steam\SteamVR\Source\SteamVR\Private\SteamVRRender.cpp:154]
UE4Editor_D3D12RHI!FD3D12Viewport::PresentChecked() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:645]
UE4Editor_D3D12RHI!FD3D12Viewport::Present() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:866]
UE4Editor_D3D12RHI!FD3D12CommandContextBase::RHIEndDrawingViewport() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:1038]
UE4Editor_RHI!FRHICommand<FRHICommandEndDrawingViewport,FRHICommandEndDrawingViewportString1847>::ExecuteAndDestruct() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\RHI\Public\RHICommandList.h:763]
UE4Editor_RHI!FRHICommandListExecutor::ExecuteInner_DoExecute() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:368]
UE4Editor_RHI!FExecuteRHIThreadTask::DoTask() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:429]
UE4Editor_RHI!TGraphTask<FExecuteRHIThreadTask>::ExecuteTask() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\Core\Public\Async\TaskGraphInterfaces.h:886]
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:709]
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:601]
UE4Editor_RenderCore!FRHIThread::Run() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp:320]
UE4Editor_Core!FRunnableThreadWin::Run() [F:\Games\UnrealEngine_4.26\UnrealEngine-release\Engine\Source\Runtime\Core\Private\Windows\WindowsRunnableThread.cpp:86]