UE 5.4.4 crashes as soon as I try to open a RVT material / material Function

[brs-sebascova]

Hello there @Tallosx66!

Checking through the community, a similar issue to your scenario was encountered and resolved in the following threads, please check the solutions implemented here:

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Getting this error when trying to paint foliage UE5.1 . Assertion failed: !IsValidChecked(ExistingActor) [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\ActorPartition\ActorPartitionSubsystem.cpp] [Line: 280] Settings: World Partition All foliage was assigned to a DataLayer (Editor) Is Spatially Loaded enabled on all landscape instances The scene also included Procedural Foliage Spawner The Solution for me was to delete the DataLayer containging the foliage. Also tried wi…

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Crashing every time I try to open any project Assertion failed: ComputePipelineState [File:D:\build++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12StateCache.cpp] [Line: 1208] UnrealEditor_D3D12RHI UnrealEditor_D3D12RHI UnrealEditor_RHI UnrealEditor_RHI UnrealEditor_RHI UnrealEditor_D3D12RHI UnrealEditor_Engine UnrealEditor_RHI UnrealEditor_RHI UnrealEditor_RHI UnrealEditor_Core UnrealEditor_Core UnrealEditor_RenderCore UnrealEditor_Core UnrealEditor_Core kernel32 ntdll