Crash when creating new projects or converting copies of old ones in Japanese

UE - Editor - UI Systems - Slate - Dec 4, 2014

There's a crash in FCharacterList::GetKerning() when using the editor in Japanese that is apparently fixed in one of these three changelists: CL# 2370014, 2370050, and 2370040 But they were not ...

Shadows are cast by meshes that have "Self Shadow Only" enabled while "Ray Tracing" is enabled with DX12

UE - Graphics Features - Lumen - Nov 6, 2019

Meshes that have "Self Shadow Only" enabled are still casting shadows if ray tracing is enabled with DX12. Found in 4.23.1 CL#9631420 Reproduced in 4.22.3 CL#7053642, 4.24 CL#10053396, 4.25 Main CL ...

RadialForceComponent ignores collision of Object Type set in Collision Presets if component is initialized in C++

UE - Gameplay - Jul 28, 2016

When a RadialForceComponent is attached to a object in C++, it doesn't take on the "Object Types to Affect" in the component settings of the Blueprint. If the RadialForceComponent is created as a co ...

Editor crashes on Launch from SteamVR

UE - Platform - XR - Aug 3, 2016

The latest 4.13 Binary Gamedev engine crashes on launch with a SteamVR callstack. This crash only occurs in Binary, I was unable to reproduce this crash in Github. This issue looks as though it may ...

Mobile VR App Crash with Monoscopic Far Field and Multi-View enabled

UE - Platform - Mobile - Nov 23, 2018

Mobile VR (Oculus Go) App Crash with Monoscopic Far Field and Multi-View enabled Workaround: Do not use Monoscopic Far Field and Multi-View at the same time Also confirmed in 4.22 Main @ CL 45 ...

Changing foliage quality during runtime crashes editor/game

UE - World Creation - Worldbuilding Tools - Foliage - Oct 25, 2017

Editor will crash if a foliage type has Enable Scaling Density checked and user changes Engine Scalability Setting for Foliage during Runtime. Alternatively, if Foliage Quality is changed using a B ...

Vertex Painting changes collision complexity if the asset is saved while vertex painting

Tools - May 12, 2016

Vertex Painting changes collision complexity if the asset is saved while vertex painting. The collision change is set to "Use Complex Collision as Simple". If this is intended functionality there sh ...

GPU Particles Don't Spawn at Correct Location When Used as Collision Event Receiver

UE - Niagara - Oct 8, 2018

GPU emitter doesn't spawn particles at expected location when it is an event receiver. Also disabling Interpolate Spawning in the emitter properties affect this behavior as well, making the particle ...

Particle light flickering with certain Post Process Settings

UE - Graphics Features - May 23, 2016

Particle lights cause flickering when using either FXAA or no AA, but turns into black squares on the screen when you enable Gaussian Blur Regression: Yes, does not occur in 4.10 ...

ARCore plugin missing 'tools' components

UE - Platform - XR - Jul 28, 2018

https://forums.unrealengine.com/development-discussion/vr-ar-development/1494917-ue-4-20p4-arcore-image-database-cannot-build/page2 Bo Pang from Google writes: "I think there are two issues here: 1 ...