Unreal Engine Issues

Niagara crash sampling vector field in and event handler stage

Distance Field AO for Hair shading model looks incorrect

It will be the same drawing as the Default Lit Material with the same value set to Nomral.[Image Removed] ...

FBX Export - Bug w/Material Import Method - Create New Instanced Materials

There appears to be a bug with the "Create New Inherited Materials" option of the "Material Import Method" of the FBX Import Options.   Instead of creating a material instance of the material specif ...

Fbx importer: Issue when reimporting staticmesh base LOD and there is some custom LOD

When we reset the material to fbx we should take care of the LOD since we will change/reorder the material slot array. ...

VirtualTexture performance is much worse on SM6 than SM5

DrawDebugString does not work with nDisplay

DrawDebugString does not appear to be working when combined with nDisplay. ...

Raytracing Material Border Artefacts

Download the licensee repro from here - [Link Removed] The issue should be immediately visible in editor, but if not, shrink the main viewport and it should become more prominent as you zoom into t ...

Precomputed AO Mask renders with value of zero after building lighting

Regression: Tested in UE5/Release-5.0 at CL 20979098, this issue does not occur so it is a regression.  This issue occurs in 5.1 for both normal light building and GPU Lightmass building. In 5.0 th ...

SetNiagaraStaticMeshComponent in UNiagaraFunctionLibrary does not add NiagaraVariable to InstanceParameterOverrides

The result of the Set Niagara Static Mesh Component (OverrideSystemUserVariableStaticMeshComponent) function provided by the UNiagaraFunctionLibrary is different from the operation result on the det ...

Renaming a level containing Text3DComponent can cause crash

BuildTextMesh function queued as AsyncTasks may be called during saving (renaming) a level containing Text3DComponents.  The following workaround fix the problem. void UText3DComponent::BuildTextMe ...