Crashes after lightmass build of suvlevels

anonymous_user_dc65259d
Fri, 03 Apr 2020 09:18:12 +0000
Rendering

I got a crashes when reopen the map after lightmass build of sublevels

What is the problem?

LoginId:4708066148c4a86f2ee2deac43b1cf4e
EpicAccountId:4cd32ce13d024f73af574dec90675c8b

Assertion failed: PSO [File:D:\Build++UE4\Sync\Engine\Source\Runtime\D3D12RHI\Private\Windows\WindowsD3D12PipelineState.cpp] [Line: 672]

UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
kernel32
ntdll

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