BP hierarchy change triggers incorrect map actor load warning: AttachTo: '{0}' is not static {1}, cannot attach '{2}' which is static to it.

UE - Framework - Blueprint - Apr 11, 2024

When a blueprint's component hierarchy is changed by changing a child component's mobility value to Static while deleting its parent component which has Movable mobility, levels saved with an outdat ...

Clothing Backstops are Larger than the Clothing Asset When Asset is Imported at a Scale Other than 1.0

UE - Simulation - Physics - Character - Feb 1, 2018

Backstops show up to be larger than the clothing asset when an asset is imported at a scale other than 1.0 and a clothing assets is created and applied Inconsistent in 4.18 but consistent in 4.19 ...

[CrashReport] UE4Editor_Landscape!ALandscapeProxy::PostEditChangeProperty() [landscapeedit.cpp:3692]

UE - LD & Modeling - Terrain - Landscape - Jul 19, 2017

This is a common crash affecting users in 4.16. Unfortunately they have not provided any additional details. Source Context 3684 // Remove null layer infos 3685 EditorLayerSettings ...

RT shadows break with a 16-bit GBuffer

UE - Graphics Features - Jan 23, 2023

Ray traced shadows are missing when the gbuffer is forced to 16-bit. ...

[CrashReport] Assertion failed on Linux: SharedContext.hGLContext in OpenGLLinux.cpp

UE - Platform - Linux - Jun 16, 2017

This is a top community crash occurring on Linux. The two linked CrashGroups have nearly identical callstacks. A log file is attached. Additional information is currently unavailable. Callstack f ...

Bloated instruction counts in the material editor causing long compiles

UE - Graphics Features - Apr 17, 2019

artists are dealing with greatly increased iteration times due to long shader compiles when working in the material editor. This has regressed over time as we add more features to the point were wor ...

Play Rate does not affect audio tracks

UE - Anim - Sequencer - Dec 30, 2016

Play Rate does not affect audio tracks. Slowing the play rate also causes the audio tracks to repeat with an offset. Note: This is working straight from a Sound Wave. If you use a sound cue, the ...

"ShowFlag.InstancedFoliage 0" hides HISMC

UE - World Creation - Worldbuilding Tools - Foliage - Jul 29, 2020

Hierarchical Instanced Static Mesh components that contain no foliage are disappearing when ShowFlag.InstancedFoliage 0 is used. This was reported and tested in 4.24.3 (CL-11590370) and reproduced ...

Visibility of World Outliner doesn't affect skylight

UE - Graphics Features - Nov 27, 2018

Visibility of World Outliner doesn't affect skylight. But it affects other kinds of lights like Point Light, Directional Light. I found that USkyLightComponent::CreateRenderState_Concurrent() doesn ...

NavMesh does not update properly when "Can Ever Affect Navigation" is toggled (For Static Meshes)

UE - AI - Sep 15, 2015

This issue is related to [Link Removed] (which was fixed). However if the user creates a new actor and then adds a static mesh they can end up with permanent holes in their nav mesh. If the user tog ...