Cull Distance Volumes Affecting Actors After Being Deleted

Rendering - Oct 7, 2019

Cull Distance Volumes Affecting Actors After Being Deleted. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, and 4.24 CL# 9428115 ...

Encryption handshake will fail if a seamless travel occurs during key lookup

Networking - Oct 4, 2019

The encryption token challenge/response portion of the control channel handshake can fail due to a seamless travel occurring between the client's NMT_Hello being received by the server and the serve ...

Crash when resizing window using Quad Stereo Buffer

Tools - nDisplay - Oct 2, 2019

We noticed crashes in our application when we attempted to resize a window or switch to full-screen mode. Hence, resizing windows and switching to full screen will result in a crash on Unreal Engine ...

Playing as a Pawn that is a Duplicate of a Blueprint Class doesn't create an Attribute Set

Gameplay - Oct 1, 2019

Creating a duplicate of a Blueprint class that has an AttributeSet seems to be interfering with the creation of the AttributeSet. ...

ClearMotionVector does not clear cloth motion blur velocity

Rendering - Features Teams - Sep 24, 2019

ClearMotionVector does not clear cloth velocity that causes temporal AA or motion blur. ...

Generate Lightmap UVs Fails Very Frequently on FBX Imported Meshes

Tools - Import - Sep 24, 2019

Generate Lightmap UVs fails very frequently on FBX imported meshes.  Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8971176 ...

Divide by zero in beam update can cause editor to crash in Cascade

Rendering - Cascade - Sep 23, 2019

The licensee has traced the issue back to a divide by zero in  UParticleModuleTypeDataBeam2::Update. If the Target and Source are the same then the beams magnitude will be zero. When there is a Nois ...

Sub Surface Shading Model has Strange Blotch Color Artifacts when Used with a Ambient Cubemap

Rendering - Features Teams - Sep 23, 2019

Sub surface shading model has strange blotch color artifacts when used with ambient cubemap. Since the subsurface profile shading model can't be used with ambient cubemap I wanted to use the regular ...

Material Translator Uniform Folding Is Not Operating Properly

Rendering - Sep 19, 2019

Uniform folding is not working with material parameter collections along with one additional unnecessary instruction generated.  Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8748719 ...

Morpher Animation incorrect if Names Overlap on Imported Mesh

Tools - Import - Sep 19, 2019

Overlapping names are imported (with extra renaming), however they fail to attach the animation. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, and 4.24 CL# 8748719 ...