Unreal Engine Issues

Reparenting a UserWidget within that widget's events can break links between UWidgets and their SWidget.

Reparenting a widget within it's own event can cause that widget's tree to have null references instead of references to slate widgets. This happens because when a widget is reparented, we remove a ...

Crash in Forward Renderer DX11 RHI Impl when using VR PIE

// enforce color target is <= depth and MSAA settings match if(RTTDesc.Width > DTTDesc.Width || RTTDesc.Height > DTTDesc.Height || RTTDesc.SampleDesc.Count != DTTDesc.SampleDesc.Count || ...

GameplayAbilitiesSystem: GameplayCues OnRemoved never firing

This behaviour was introduced in the following changelists in 5.3: CLs 25371706 and 25407985 https://github.com/EpicGames/UnrealEngine/commit/6e985ceeb98bc0d166756ccd3e3c0b0350d02265https://github. ...

UBlueprintEditorLibrary::ReparentBlueprint() results in compiler errors when attempting to reparent from a native parent class to a blueprint parent class

When using the Reparent Blueprint node in an Editor Utility Blueprint, e.g. an Asset Action Utility, compilation errors will occur if you try to reparent a blueprint with a native parent class to a ...

Material Emissive Color not working with SkyAtmosphereIlluminance Material Expression

A licensee has reported that they are unable to use an emissive material utilizing the SkyAtmosphereLightIlluminance material expression together with Nanite and Lumen. The linked UDN has some more ...

Distance Fields no longer work with instances when PIE/Simulate

When using distance fields with instance meshes from the foliage tool everything works correctly, however, when simulating or PIE the distance fields will be removed. This working correctly in 4.7.5 ...

Suspend Clothing Simulation doesn't work when running from Construction Script

If the user sets up Suspend Clothing Simulation in the Construction Script of a blueprint, it will not work when playing. It will work if setup in the Event Graph on Begin Play. ...

Skeletal Mesh Collapses with OpenGL ES3.1 on Tegra K1 devices

When launching to an Android device that supports ES3.1 skeletal meshes seem to collapse in game. ...

Unable to Play Sequence in PIE when changing levels in C++ with ClientTravel()

Changing levels with ClientTravel() breaks ability to activate sequence. Client Travel API: [Link Removed] Confirmed in 4.22 MAIN at CL 4503321  ...

Translucent material can't get reflection on mobile deferred.