Unreal Engine Issues

Exponential Height Fog renders incorrectly after Set World Origin Location

When having an Exponential Height Fog actor far away from origin, after doing Set World Origin Location, Exponential Height Fog's appearance changes. ...

Unexpected Changes in Saturation/Contrast of Colors when upgrading project to 4.15

When upgrading a project to 4.15 (in my case from 4.14.3), the colors seem to have shifted in contrast/saturation. It is not a huge difference, but noticeable enough to affect the overall result of ...

Discrepancy in capsule distance to floor when crouching

When crouching is set in the CharacterMovement Component, the distance from the character capsule to the floor increases by one unit while crouching. Regression: No - Same behavior occurs in 4.16.3 ...

Material Parameter Collection does not correctly render in Widget BP

If a Material Parameter Collection with a Scalar Parameter is used within a material and that material is called within a widget the scalar parameter will render with a 0 value, even when set to ano ...

FBX & OBJ Files no longer Import with their UVs Depending on Software Used

Importing an OBJ file no longer imports the UVs. Test asset included for OBJ and FBX version of the same file. Added Test FBX from SketchUp Tested with: 4.12.5 CL-3039270 - Working 4.13.0 CL-31 ...

GetClosestPointOnCollision returning point on parent

GetClosestPointonCollision returns point on parent instead of welded child. From user: "The problem appears to be in PhysicsInterfacePhysX.cpp in GetSquaredDistanceToBody, line 2873. When UPrimit ...

Tessellation not working properly on Vulkan

When a user launches content examples with -vulkan tessellation will not be working. Everything tessellated will appear as if it has no tessellation. This issue is also occurring in 4.18 ...

STAT_VolumetricLightmapBuildData is not counted correctly

STAT_VolumetricLightmapBuildData isn't counted correctly. It seems that the root cause is Volume.IndirectionTexture.DataSize is set to 0 before STAT_VolumetricLightmapBuildData is decreased.// Prec ...

Mac Intel - Sun light is exploding in the viewport

Runtime Virtual Texture rendering can allocate more FRDGBuffers than expected

When rendering runtime virtual texture pages without throttling (when r.VT.MaxUploadsPerFrame is high or during Movie RenderQueue captures) the number of FRDGBuffers allocated by the Render Graph Bu ...