Unreal Engine Issues

Custom expression additional outputs don't work when connected to World Position Offset

Custom expression additional outputs are considered (0,0,0) when connected to WPO. ...

The speed of Animators is increased in exports

Reported in SF [Link Removed] When setting Animator tools to use Collision mode for video, the loop speed of the animator will be twice as fast as specified in the video export. Attached a sample ...

Translucent meshes randomly flicker when using VSM

Flickering can occur on translucent materials, usually in the distance when there is at least one directional light and when using VSM. Flickering seems highly framerate/timing dependent. Limiting ...

Apply mesh paint Blueprint instance changes and save fails

After mesh painting on a BP Static Mesh Actor, and "Apply instance changes to Blueprint" the added virtual texture is removed with the log:LogTexture: Display: Building texture TwoD: /Game/FirstPers ...

Rare crash in FWidgetAnimationState::OnStopped

The FWidgetAnimationState::OnStopped delegate is getting created when the widget anim state is being destroyed and then queued to be executed later. Something is happening between the queue and the ...

'Use focal length' checkbox resets on reopening file

Crash when using ListStreamingTextures with VirtualTexturePrefetchMips

The ListStreamingTextures command causes a crash in FRenderAssetStreamingManager::HandleListStreamingRenderAssetsCommand when there is a virtual texture that uses crashes when encountering one of t ...

Substrate Single Layer Water material fails to compile in blendable Gbuffer mode when using the Single Layer Water BSDF node

When using Substrate in Blendable GBuffer mode, a material with the single layer water BSDF node produces a shader compiler error : MaterialEditorStats: Error: [SM6] Shader debug info dumped to: "\ ...

Crash when applying Decal material with Distance Cull Fade node to Decal Actor

The Editor crashes when applying a Material with a Distance Cull Fade node to a Decal Actor. Fatal error: [Link Removed] [Line: 730] Missing uniform buffer at slot 2, stage SF_Pixel. Please check ...

AbilitySystemComponent::RepAnimMontageInfo causing push model validation ensure

When iterating through the struct’s properties to check if the values have remained the same, it seems as though the SectionIdToPlay has changed, causing validation to fail (see attached log snippet ...