SceneCaptureComponent2D Anti-Aliasing not working unless Post-Processing flag is toggled OFF and back ON again

Rendering - Aug 28, 2019

SceneCaptureComponent2D Anti-Aliasing does NOT work unless Post-Processing hidden show flag is toggled OFF and back ON again. This state persists only during Editor time. Upon restarting the Editor ...

Crash when setting Anim to "None" with URO

Anim - Aug 28, 2019

A Crash can occur when setting a skeletal mesh's animation instance to None when it has Update Rate Optimizations enabled. An unverified proposed fix for this is to remove the nullptr check when ...

State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing

Anim - Aug 28, 2019

State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing at the moment you enter/leave the state. ...

Specular Isn't Affected for Materials Set to the Eye Shader If r.IrisNormal is Enabled

Rendering - Aug 27, 2019

Specular Doesn't Affect a Material with the Eye Shader If r.IrisNormal is enabled. Found in 4.22 CL# 7053642, 4.23 CL# 8115738, 4.24 CL# 8302014 ...

Dithered LOD Transition does not work on some mobile devices

Platform - Mobile - Aug 27, 2019

I tested with some mobile devices and Dithered LOD Transition did not work on Huawei P20 Pro. This problem does not occur with Snapdragon. This problem does not occur with Snapdragon like Pixel 3. ...

Confusing message when attempting to connect mismatched Delegate pins

Gameplay - Blueprint Editor - Aug 26, 2019

When the user attempts to connect delegate pins that don't match, they received a confusing mouse tooltip message that simply reads "Delegate is not compatible with Delegate". Suggested fix: When ...

Blend Graph can trigger ensure Bone.IsRotationNormalized()

Anim - Aug 23, 2019

Using a custom Blend Graph can trigger the ensure Bone.IsRotationNormalized() when source pose is connected to output. ...

Foward Instanced Stereo Rendering draws decals differently between eyes in VR

XR - Aug 22, 2019

When using the Desktop Forward Renderer and Instanced Stereo Rendering, draws static meshes with decal materials applied differently between eyes in VR. Tested on Oculus, probably not specific to O ...

Ray Traced Ambient Occlusion Uses Resources Even if AO Intensity is 0

Rendering - Ray Tracing - Aug 22, 2019

Ray traced Ambient Occlusion is still active even when Ambient Occlusion Intensity is set to 0 in the Post Process Volume. Found in 4.22 CL# 7053642, 4.23 CL# 8115738, 4.24 CL# 8124506 ...

InstancedStaticMeshes disappear in Shipping builds on mobile when affected by dynamic point lights

Platform - Mobile - Aug 22, 2019

This ticket is to add the safe workaround for 4.23.1, with a more optimal fix coming in 4.24. ...