Unreal Engine Issues

Parameter metadata not accessible if modified in Material Instance and then converted to CustomPrimitiveData

There’s a potential issue with some changes we made to UMaterialInstance::GetParameterValue (https://github.com/EpicGames/UnrealEngine/commit/8f2bebb008ba645f5938da844cd46b0925322b13). It seems as t ...

Report: Crash when adding new object instances in array in Widget Editor

Please review crash report from EPS case. repro project attached [Link Removed] ...

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 dependent on framerate and timing. L ...

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 ...

Memory leak with -renderoffscreen and uncapped frame rate

A customer reported that -renderoffscreen leaks when running with an uncapped frame rate ...

'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 ...