Unreal Engine Issues

Fatal Error: Cast of Package to AnimGraphNode_BlendSpaceGraphBase failed when deleting an opened Blendspace node in a State graph

When deleting a Blendspace or Blendspace 1D node in a state graph, after opening it, the editor crashes. It doesn't crash when deleting it before opening the Blendspace node. It also doesn't matter ...

Mesh Decals don't work with HISM of non-nanite meshes

The HISM on the right has 4 instances light the ISM on the left, but only one instance works with the mesh decal material.  [Image Removed] ...

URuntimeVirtualTextureComponent::Invalidate does not work with Adaptive virtual textures

Groom bound to GeometryCache is unstable

This issue seems to occur only in 4.27 with DX12. Did not repro in 4.27 with -dx11, nor in UE5 DX11/DX12. ...

Niagara Crash : ExportParticleDataToBlueprint module causes buffer overrun

This buffer overrun is probably caused by the ExportParticleDataToBlueprint module does not respecting the GPUAllocation Fixed Size setting in the module. In fact, out-of-range export data is not c ...

DebugDrawHelper memory leak in editor

Refraction broken when using material function

Licensee has provided a BP workaround ...

[Feature Request] Niagara Ribbon Render needs V direction Tessellation option

It has a common chunking visual artifacts that lot's of triangular Translucent overlap once Ribbon's width is big and twisted heavily facing to Camera [Image Removed] It can be fixed by adding mor ...

Copying and pasting event tracks will break endpoint bindings

See linked UDN for more info. There appears to be an issue with mismatching parents when copying causing this to fail. ...

[CrashReport] UE4Editor-EncoderNVENC!static bool AVEncoder::GetEncoderInfo(class AVEncoder::FNVENCCommon & const, struct AVEncoder::FVideoEncoderInfo & const) [NVENC_EncoderH264.cpp:1253]

Generated from CrashReporter ...