"FVector contains NaN" on packaged builds for Debug configuration

UE - Graphics Features - Lumen - May 6, 2022

Customer Provided Description:This was experienced in UE 5.01 - custom installed engine (No changes to UE code, simply added the Debug build configuration, see the following command): "c:%ue_dire ...

Crash in point cloud when building collision

UE - Editor - Content Pipeline - Datasmith - May 6, 2022

From a user report: It happens after I play the game in a new window from the editor. I noticed it may be related to building collisions for a point cloud on runtime: [Link Removed] If I don't bui ...

Level Variant Bindings are lost when saving level with a different name

UE - Editor - Content Pipeline - Datasmith - May 5, 2022

When saving a level, that has a level variant asset in it, with a different name, the bindings within the level variant are broken. ...

Box Reflection Capture is placed with a different default scale value when placed from the Quick Add Menu

UE - Editor - Workflow Systems - May 5, 2022

Box Reflection Capture scale is set to 1.0, 1.0, 1.0 instead of 1,000.0, 1000.0, 400.0 when placed from the Quick Add Menu versus other placement methods. ...

Materials using Landscape Layer Blend are black

UE - LD & Modeling - Terrain - Landscape - May 4, 2022

When applying a Landscape Layer Blend of textures to the Material Base Color, the preview does not update or shows black instead of how the material is supposed to look. When you disconnect the lay ...

Editor Utility Blueprint derived from Actor Action Utility with an array variable doesn't work as expected when using Scripted Actor Action to add elements to the array

UE - Editor - Workflow Systems - May 4, 2022

This is a regression. Editor Utility Blueprint derived from Actor Action Utility with an array variable doesn't work as expected when using Scripted Actor Action to add elements to the array. ...

Niagara Fluids Grid3D_Gas_Explosion causes a crash

UE - Niagara - May 4, 2022

Placing Grid3D_Gas_Explosion into a level then packaging the level for windows will crash the packaged project. The package will give an error that it crashed while loading and quit.  This does not ...

Post Process Animation Blueprint triggering a crash when compiled

UE - Anim - Runtime - May 4, 2022

User Description: "Crash happens only while trying to compile parent character's blueprint which contains no specified skeletal mesh. Child character containing mesh that uses mentioned post process ...

Separate Translucency causes crash with iOS and Android Vulkan preview rendering

UE - Platform - Mobile - May 4, 2022

This is a regression. Separate Translucency causes crash with iOS and Android Vulkan preview. ...

State Machine Variable Type Icons Display in the Color White

UE - Anim - Runtime - May 4, 2022

Occurs 5/5 times State machine variable type icons all display in the color white.  Regression does occur - tested in //UE4/Release-4.27.2 EGL Live @ CL18319896 ...