Editor crashes when assigning Landscape layer info while Forward Shading is enabled

UE - LD & Modeling - Terrain - Landscape - Nov 7, 2017

Crash occurs when Forward Shading is enabled in Forward Rendering Options User noted that if "Support Stationary Skylight" in Project Settings > Rendering > Shader Permutation Reduction is disabled ...

Crash when BP_LightStage SkyLight Cubemap Resolution changed by spinning value

UE - Graphics Features - Nov 28, 2017

Engine crashes when the value in the Cubemap Resolution for the SkyLight component in the BP_LightStage is changed by spinning the value. This asset is found within the Advanced_Lighting map of a B ...

Particle emitter with Mesh Data type does not change material to new material instance

UE - Niagara - Jun 4, 2018

Particle emitter with Mesh Data type does not change material to new material instance. It will not apply changes that are being made at run time to a parameter in the material instance being used.  ...

CCD can produce incorrect results at low frame rates

UE - Simulation - Physics - Feb 27, 2019

The attached project has a fixed frame rate of 30fps with a simulating CCD cube above a with a full restitution floor. The cube has an odd rotation, such that it impacts the floor at a single point ...

Undo and ConstructionScript break the AttachChildren array

UE - Gameplay - Components - Nov 14, 2019

Undo fills AttachChildren array with null by the undo serializer. After that, a construction script tries to remove child components from parent component's AttachChildren but it can't find its poi ...

Pilot actor no longer generates undo transactions

UE - Editor - Workflow Systems - Jan 22, 2024

The piloting feature in the editor viewport is not undoable with Ctrl+Z It also does not cause the actor to become dirty so any changes during piloting are lost and not saved (user also not prompted ...

Capsule Indirect Lighting with ILCQ Volume breaks on Skeletal Meshes when making Sublevel visible not in the current Camera Frustum

UE - Graphics Features - Apr 12, 2017

When using Capsule Indirect Shadows for Skeletal meshes who have their ILCQ set to Volume, and loading a SubLevel with it's actors not within the current camera's view, the indirect lighting is blac ...

Crash occurs with gameplay tag map variable compiles with default value changed

UE - Gameplay - Blueprint - Jun 28, 2017

there is a crash that occurs with gameplay tag map variable compiles with default value changed. This issue occurs no matter what the secondary value of the map is. I was unable to test this issue i ...

Changing the font size to a small size distorts the font

UE - Editor - UI Systems - Slate - Nov 14, 2017

There is issue occurring when changing the font size to a small size, doing this distorts the font when the size is below size 18. It is unknown if this intended behavior for how fonts are resized. ...

Rebuild (with hot reload) fails on newly-created projects

UE - Foundation - Cpp Tools - Hot Reload - Jan 18, 2018

Performing a Rebuild with a hot reload on a brand new code project will fail unless both the Editor and Visual Studio have first been closed and then re-opened. The same result occurs if a Clean is ...