Crash entering PIE without Magic Leap SDK referencing delayhlp.cpp:323

UE - Platform - XR - Jan 31, 2019

Editor crash when PIEing without ML SDK installed on machine. This did not occur at the same CL on a P4 build. This did not occur on a machine with the ML SDK installed. Does not occur in //UE4/Re ...

AttachToComponent replication snapping to position instead of keeping relative location

UE - Networking - Feb 15, 2019

When using AttachToComponent at runtime, the attachment does not replicate properly for some clients. The relative transform/rotation is not maintained. The user who reported this issue mentioned th ...

"Found more than one function with the same name" after duplicating an interface function

UE - Gameplay - Blueprint - Mar 1, 2019

REGRESSION: No, this occurs as far back as 4.20 After duplicating a blueprint interface function, the duplicate interface will have an error similar to this:LogBlueprint: Error: [Compiler NewInterf ...

GLTF Datasmith Files Import Incorrectly if Mesh Names Contain a "."

UE - Editor - Content Pipeline - Datasmith - Importer - Jun 3, 2019

Importing a GTFL through the GLTF Datasmith import references incorrect instance meshes when their names contain a period. Which is very common when exporting from Blender which automatically adds t ...

Spline mesh actor + Vulkan RHI, rendering artifacts

UE - Rendering - Architecture - RHI - Feb 7, 2020

Rendering artifacts when using spline meshes with Vulkan enabled. Recent Nvidia drivers may be required for repro. (Users version: 441.66 , My Local Version: 441.12) Confirmed in MAIN 4.25 @ CL 11 ...

Adding a camera cut track through sequencer scripting does not set the movie scene's camera cut track

UE - Anim - Sequencer - Mar 13, 2020

When adding a camera cut track through sequencer scripting there is no way to set the camera cut track on the movie scene, which is how the add track menu determines if a new one can be added. This ...

Crash when setting a module input to read from a new user parameter

UE - Niagara - Jun 2, 2020

Crash when setting a module input to read from a new user parameter Crash does not occur when drag/dropping a User Parameter from the Parameters panel into the input, or when selecting a preexistin ...

Blueprint Function Library variables can be promoted out of scope

UE - Gameplay - Blueprint - Oct 5, 2020

Input parameters can be promoted to variables from the context menu when dropped on an empty graph. Per [Link Removed] this is not expected and dangerous for users to use. This is reproducible as f ...

Running a VR template packaged game with -nohmd results in an AudioDevice crash

UE - Platform - XR - Mar 18, 2021

Running a VR template project with -nohmd causes the packaged game to crash on launch. Running with just -vr doesn't result in a crash. Tested in //UE4/Release-4.25 @ CL 14469661 and did not encoun ...

MediaFramework - Webcam Video input shows as black in Media Player

UE - Media Framework - Aug 17, 2021

Alejandro Arango 3 days ago In fact, it seems the 4.27 changes are conditioned by WMFMEDIA_PLAYER_VERSION . So the only change needed is in WmfMedia.Build.cs . They only need to change it to say: P ...