Unreal engine MAJOR CRASH CANNOT OPEN

General Feedback & Requests
1

My unreal engine crashes with this code:

LoginId:c28411144fdf8052a7c59aa2a9448d3e
EpicAccountId:86172a3d0b914f1985c293b4d01c5c88

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000018

nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
D3D12Core
D3D12Core
dxgi
dxgi
dxgi
dxgi
dxgi
dxgi
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_Core
UE4Editor_Core
UE4Editor_RenderCore
UE4Editor_Core
UE4Editor_Core
kernel32
ntdll

this has happened even after an entire reinstall of both epic games launcher and unreal engine, regardless of versions. In the attached video it shows that it crashes when I open (or dismiss) the plugin settings notifications, however, even when I do not open it and just whilst designing in ue4, this crash still happens unpredicatably.2021-04-26 12-59-05.mkv (2.8 MB)

This started happening to all my files(including both existing and new ue4 scenes), after I have downloaded a scene from the internet (Mortuary 16), and tried to migrate some of their project assets.

Can someone please help me out, as it seems like I cant even create new projects and cant even use UE4 anymore.

2021-04-26 12-16-44.mkv (4.5 MB)2021-04-26 12-25-55.mkv (579.1 KB)

2

another crash has happened when i tried again:
LoginId:c28411144fdf8052a7c59aa2a9448d3e
EpicAccountId:86172a3d0b914f1985c293b4d01c5c88

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000018

nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
D3D12Core
D3D12Core
dxgi
dxgi
dxgi
dxgi
dxgi
dxgi
UE4Editor_D3D12RHI!FD3D12Viewport::PresentChecked() [D:\Build++UE4\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:650]
UE4Editor_D3D12RHI!FD3D12Viewport::Present() [D:\Build++UE4\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:866]
UE4Editor_D3D12RHI!FD3D12CommandContextBase::RHIEndDrawingViewport() [D:\Build++UE4\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:1038]
UE4Editor_RHI!FRHICommand<FRHICommandEndDrawingViewport,FRHICommandEndDrawingViewportString1847>::ExecuteAndDestruct() [D:\Build++UE4\Sync\Engine\Source\Runtime\RHI\Public\RHICommandList.h:763]
UE4Editor_RHI!FRHICommandListExecutor::ExecuteInner_DoExecute() [D:\Build++UE4\Sync\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:368]
UE4Editor_RHI!FExecuteRHIThreadTask::DoTask() [D:\Build++UE4\Sync\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:429]
UE4Editor_RHI!TGraphTask::ExecuteTask() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Public\Async\TaskGraphInterfaces.h:886]
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:709]
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:601]
UE4Editor_RenderCore!FRHIThread::Run() [D:\Build++UE4\Sync\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp:320]
UE4Editor_Core!FRunnableThreadWin::Run() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Windows\WindowsRunnableThread.cpp:86]