Unreal Engine Issues

Vertex Interpolators broken in landscape materials

D:/Unreal/UE4_Release-4.27/Engine/Shaders/Private/LandscapeVertexFactory.ush(788,3-59): Shader FDebugViewModeVS, Permutation 0, VF FLandscapeVertexFactory[Image Removed]:/Unreal/UE4_Release-4.27/Eng ...

Cascade To Niagara Converter doesn't place Collision Module in a proper order in the stage

Cascade To Niagara Converter doesn't respect Initial Location Module

Niagara's Initialize Particle Module has the Input.Position Write default Value False which is fine as long as the Cascade To Niagara Converter can realizes whether Cascade has the location Module a ...

GPU lightmass not baking directional light with sub levels and VTs off

The Niagara Staticmesh data interface node Random Tri Coords doesn't respect Emitter's Deterministic Settings

From UDN: We are using the Cascade particle system and we want to render the same scene with multiple cameras, so multiple renders are required. In order to ensure that the result of the particle s ...

GPU Debug Label is not set on some textures

texture streaming is one of the reasons that drop the label but not the only reason. add a line of code RHIBindDebugLabelName(NewTexture, *OldTexture->GetName().ToString()); into FMetalDynamicRHI:: ...

[Reverb Effect] - Deactivate Reverb Effect Blueprint Doesn't Deactivate Reverb

When deactivating a reverb, it's removed from the Activated List, but doesn't get removed from being the active reverb. Confirmed occurs in 4.27 and 5.0 ...

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. ...

DebugDrawHelper memory leak in editor