Materials using Landscape Layer Blend are black

UE - Graphics Tools - 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 ...

Play options menu vanishes sometimes

UE - Editor - Applied Usability - Oct 8, 2024

There seems to be something wrong with how we close menus and submenus as submenus are opened and closed based on mouse interaction. In particular, we seem to sometimes close the whole menu hierarch ...

Scenecapturecomponent not including Niagara effect if custom renderpass is used

UE - Graphics Features - Mar 20, 2025

When using an "FSceneRenderer::CustomRenderPasses", the View never has Distance Field textures assigned. Can it instead reuse the Distance Field clipmap from the main view? ...

Nanite UV switch seams

UE - Graphics Features - Jun 13, 2025

Analytical Derivatives are not calculated properly when using UMaterialExpressionSwitch. Disjoint UVs in screen space result in large jumps in the derivatives, which can cause artifacts as the wrong ...

Creating a new Matinee Controller node only shows the Finished pin

UE - Gameplay - Blueprint - Dec 9, 2014

Worked: P4 Main 4.7 CL:2375748 P4 Releases 4.6 CL:2369413 (Gold) Broken: Portal Binary 4.5.0 CL:2326478 After creating a matinee with event(s) in it, creating a Matinee Controller only shows the " ...

Adding a Material Parameter track sets Parameter to Master Material defaults

UE - Anim - Sequencer - Aug 5, 2016

In Sequencer, adding a Material Parameter track sets Parameter to Master Material defaults ...

Character animations are not played in sequence created from Recording First Person Template

UE - Anim - Sequencer - Aug 5, 2016

Character animations are not played in sequence created from Recording First Person Template Follow-up to [Link Removed] ...

Hot reload breaks code based struct array used in blueprints

UE - Gameplay - Blueprint - Mar 21, 2016

When an array of a struct, defined in code, is used in a blueprint, preforming a hot reload after making changes to the class with the struct will cause the blueprint nodes relating to the struct be ...

Crash on Mac on exit.

Media Framework - Aug 17, 2020

A licensee reported trouble with a crash on exit on Mac. They discovered that the file AvfMediaPlayer.cpp, on the function Open there is this piece of code:// Force the AV player to not be able to ...

Waking both of a constraint's rigidbodies re-enables collisions between constrained actors that were disabled by a Physics Constraint Actor

UE - Simulation - Physics - Solver - Apr 12, 2022

Waking both of a constraint's rigidbodies re-enables collisions that were disabled by the physics constraint You can also get this issue to occur by either shooting the two cubes around a bit, or by ...