Compiling a blueprint with SetCollisionResponseToChannel Causes Crash

UE - Gameplay - Dec 5, 2016

When using a blueprint with a destructible component, you can call the SetCollisionResponseToChannel node of that component in the construction script. As a result the engine will crash when attempt ...

SpeedTree Billboards rendering with Incorrect Material

Tools - Dec 12, 2016

Material Billboards for SpeedTree assets are rendering with the incorrect material. This can occur to any pre-existing project, or a new project with imported SpeedTree content using both 3d LODs an ...

Making the viewport fullscreen while Application scale is a value other than 1.0 results in a zoomed in/out viewport

Tools - Jan 11, 2017

When using Application Scale in the editor, using F11 to make the viewport fullscreen results in an either zoomed in or zoomed out fullscreen version. Note: This same issue occurs when using a comb ...

Some settings in a Timeline do not dirty the blueprint upon being changed

UE - Gameplay - Blueprint - Jan 16, 2017

When the following settings are changed in a Timeline in a Blueprint, the blueprint is not dirtied, meaning that the changes won't be compiled or saved upon playing or using Save All. Length Use La ...

Pin wires do not connect correctly after collapse to function and duplication

UE - Gameplay - Blueprint - Mar 20, 2017

Pin wires do not connect correctly after collapse to function and duplication. Any node can cause this issue, I used an INT variable because it was quick to test with. Regression: This issue affect ...

[CrashReport] Access violation - code c0000005 in FD3D11DynamicRHI::RHISetShaderTexture

UE - Rendering - Architecture - RHI - Apr 17, 2017

This crash occurs frequently for our users. It appears to be the same issue that was logged in [Link Removed]. For that Jira, the CrashGroup stopped getting updates after 4.13.2 - [Link Removed] ...

[CrashReport] Mac crash in UE4Editor-Engine.dylib!LoadPhysXModules()::$_0::operator()()

UE - Platform - Apple - Jun 8, 2017

This is a common Mac crash that has been occurring since 4.15. It shares the same callstack with [Link Removed], but that was verified fixed for 4.16.0, while this crash still continues into 4.16. ...

Material Ambient Occlusion Does Not Work With Skylight Set to Movable

UE - Graphics Features - Jul 27, 2018

Material ambient occlusion does not work with the skylight set to movable. Setting the material to allow static lighting will fix the issue until the level is reloaded. Found in 4.19 CL# 4033788, 4 ...

Assert when tracing animations with Linked Anim Graphs

UE - Runtime - Animation - Oct 19, 2021

An assert fires related to the node index for the linked animgraph node being the same as the node index for the root node in the linked anim graph. Can be worked around by commenting out the check ...

Create a high poly version of the base sphere

UE - Content - Engine - Nov 23, 2021

We have an issue with artefacting of virtual shadow maps on low poly meshes: [Link Removed] We would like to request a higher polygon version of the sphere for UE5's release/starter content, which ...