Unreal Engine Issues

Global SkyAtmosphere and Clouds Issues (Cloud Shadows)

Sampling Cloud Shadows when rendering the Sky Atmosphere can incorrectly assume that the view is located at the planet's North Pole. This causes distortion in the shadows when using a sphere-shaped ...

Global SkyAtmosphere and Clouds Issues (Ambient Light)

Ambient Light on Volumetric Clouds from Sky Atmosphere always is calculated as if the clouds are at the north pole of the planet. Using a sphere-shaped Sky Atmosphere and Volumetric Clouds causes t ...

PlayerStart in level instances does not start player at location after transitioning between maps in PIE

Crash can happen in FDetailLayoutBuilderImpl::Tick() when a category of UStruct member includes the "|" symbol and member is Tickable.

A crash can occur when a member of a UStruct has a category with the "|" symbol and is trying to be displayed inside by the FDetailLayoutBuilderImpl class. This happens when there is a UStruct memb ...

Crash when enabling r.PSOPrecache.Resources due to check() in FSkeletalMeshObjectGPUSkin::GetUsedVertexFactoryData

The game crashes because of a nullptr SkinnedMeshComponent in  FSkeletalMeshObjectGPUSkin::GetUsedVertexFactoryData when r.PSOPrecache.Resources is enabled and a skeletal mesh is loaded due to a new ...

Packed Level Actors and Instance Vertex Colors

Unloaded actors missing when moving WP levels in content browser

Physical Material Mask bug found in GetPhysMatIndex, potentially causing issues with lookup.

On line 408 of UPhysicalMaterialMask::GetPhysMatIndex() in PhysicalMaterialMask.cpp, the AdjustCoord() function is given AddressX for both the U and V coordinates. The AddressY input is never used i ...

Some instances spawned by NeagaraDataInterfaceChaosDestruction breaking event will be set location to the world origin

 The following code can often be found in UNiagaraDataInterfaceChaosDestruction.const int32 ParticleID = ParticleIDParam.GetAndAdvance() - LastSpawnedPointID + 1; The LastSpawnedPointID is usual ...

GeometryCollectionActor SetSimulatePhysics false does not stop Physics Simulation

If the GeometryCollectionActor (GCA) is simulating physics, calling SetSimulatePhysics(false) does not stop the simulation. If the simulation is paused, calling SetSimulatePhysics(true) does as expe ...