Unreal Engine Issues

"Windows Principal functionality is not supported on this platform" when packaging for iOS on Mac

Thread here: https://github.com/dotnet/standard/issues/1279 ...

Pawn's role is incorrect in BeginPlay on client if a multicast RPC is called in BeginPlay on server

It seems as though calling a multicast RPC during BeginPlay on the server will cause the new actor to finish spawning on the client before applying any initial replicated data, such as the actor's R ...

Copying/pasting a Blueprint static function triggers an ensure and a new parameter in function signature

Fatal Error when setting S RGB to true on a Texture 2D from a Render Target Create Static Texture Editor Only node

This is a regression. Tested in //UE4/Release-4.27 CL#18319896 Fatal Error when setting S RGB to true on a Texture 2D from a Render Target Create Static Texture Editor Only node. ...

Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph

This is a regression testing in //UE4/Release-5.0 CL#18319896 Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph. ...

[CrashReport]libUnrealEditor-RenderCore!FRDGEventScopeOpArray::Execute(FRDGBreadcrumbState&) [RenderGraphEvent.cpp:149]

Generated from CrashReporter Error Message:Assertion failed: !EnumHasAnyFlags(StencilAccess, AnyCopy) [File:./Runtime/VulkanRHI/Private/VulkanBarriers.cpp] [Line: 439] Only the Stencil being transi ...

Hair shading emits light when Lumen is enabled

This artifact does not occur when Lumen is disabled. Also, moving Roughness closer to 1 will reduce the effect. ...

Duplicate subobjects when you attach to an OptionalDefaultSubobject

I believe that this is happening because of a problem within USubobjectDataSubsystem::FindOrCreateAttachParentForComponent where it is creating duplicates of the character mesh because the "TestScen ...

Properly handle child actor component referencing Level Instance actor

Material fails to compile when virtual texture is connected to opacity mask only through Make/Break Material Attributes

If we connect a virtual texture to the opacity mask output of a material the material will fail to compile. Currently this is expected because allowing it could cause problems such as:No virtual tex ...