Unreal Engine Issues

Switching AnimLayer to child AnimBP doesn't trigger inertial blending

At compile time, BlendOptions array which contains BlendTime setting are created. These are copied from its own interfaces, not the parent's. The blending works fine if the parent's interface is als ...

Allow the choice to implement a BP Interface function as an event OR a function

[Image Removed] This messaging is confusing because it says "Implement Function" when really it creates an event. We need to clear up the messaging here, or provide an option to create it as a fu ...

Material does not render correctly when launched with Cook on the fly

This issue seems to occur when using Cook on the fly on a Material that is branched on the Static switch. This issue also seems to occur on the console. Regression = Yes, issue is not reproduced // ...

Distance Cull Fade Node on Material does not work with Skeletal Mesh

The licensee reports that this issue is caused by the following code not performing a Buffer update. .\Engine\Source\Runtime\Renderer\Private\ShaderBaseClasses.cpp void FMeshMaterialShaderElementD ...

Last frame pose is not evaluated when playing Anim Montage with Blend Out Time of 0 in AnimNodeSlot

When playing AnimMontage with BlendOutTime set to 0.f with AnimNode_Slot of AnimBP, it seems that the last frame pose may not be evaluated. this issue does not occur in high frame rate and does not ...

Auto-creation of SmartObjectCollection is often undesired

Right now whenever a new world is created in the editor we automatically spawn a SmartObjectCollection actor for it, regardless of whether there are SmartObjects on the map. The SmartObjectCollectio ...

Interactive changes from In-Camera VFX widgets are not transacting to nDisplay until mouse is released

Enhanced Input Action Key Remapping maps old mapping over incoming mapping in an unintuitive way

On EnhancedInputSubsystemInterface.cpp:1040, RebuildControlMappings has a check to preserve mappings for identical action key maps. In most cases, this appears to work correctly; however, in the cas ...

Assert triggering when trying to copy-paste an empty CurveAtlasRowParameter node in the material editor

A check happens when copy/pasting a Curve Atlas Row Parameter Expression that has no value. This behavior also exists on CL 32426910 of Release-5.4. ...

LocalHeightFog placed in 5.3 projects are invalid and not appearing when the project is updated to 5.4

LocalHeightFog actors placed in levels for 5.3 projects are invalid and not appearing in levels after the project is upgraded to 5.4. This is likely due to LocalHeightFog being renamed to LocalFogVo ...