Unreal Engine Issues

Multiple setter functions in UMaterialEditingLibrary always return false even when the parameter is correctly set on the MaterialInstance.

In Unreal Engine, materials can expose parameters that can then be modified via instances (MaterialInstanceConstant). The UMaterialEditingLibrary provides several functions to modify these parameter ...

Rendering of a Text Widget with Outline does not track LayerId correctly

Text widget with Outline uses 2 LayerId levels to draw the outline and the text glyphs. This can be seen in function FSlateElementBatcher::AddShapedTextElement(), where lambda BuildFontGeometry() is ...

ChaosWheeledVehicleMovementComponent is breaking the const CDO contract and changes to the instances are being applied to the CDO

As described by the licensee, the const CDO contract is being broken on ChaosWheeledVehicleMovementComponent. The issue the licensee is facing is that by spawning cars with different configurations, ...

Chaos Trailing Events not exposed to Blueprints and only accessible via Niagara Chaos DI

Chaos Trailing Events not exposed to Blueprints and only accessible via Niagara Chaos DI. The licensee noticed that the Trailing event is not available to BPs. It's expected that the same data avail ...

Inconsistent parameter handling for pak/iostore block size / patch padding

Users have trouble overriding the blocksize/patchpaddingalign parameters for UnrealPak from UAT commandlines.There is no easy way to specify these parameters through a buildcookrun, instead they n ...

[Legacy][FBX] Animation curves are not added to the skeleton anymore

Memory leak in global distance field when bDisableWorldRendering=true

A memory leak occurs in global distance fields when bDisableWorldRendering=true As a workaround until this is fixed, you can disable the logic that checks bUpdatedThisFrame *in *GlobalDistanceField ...

VisualizeTexture with the BMP flag causes a crash when any mip over mip0 is requested

When a mip level higher than 0 is requested in VisualizeTexture, the engine will crash. The root cause appears to be VisualizeTexture.cpp:924, on which an incorrect mip level is used to read a non-m ...

Diffing blueprints in Perforce changelist reviewer incorrectly displays blueprints that reference assets not in local filesystem

When diffing a blueprint in the Perforce changelist reviewer in-editor (Review Changelists), if the blueprint references an asset that does not exist locally but rather exists as a newly added asset ...

ALevelVariantSetsActor not exposing Actor tags

Hi, while trying to workaround this: https://udn.unrealengine.com/s/question/0D54z00008kTgHCCA0/variant-manager-crash-in-upropertyvaluehasvalidresolve I thought I would not create variant sets act ...