Physics object resting on movable platforms have erratic physics behavior in 4.14

UE - Simulation - Physics - Dec 14, 2016

Physics object resting on movable platforms have erratic physics behavior in 4.14. This is a regression from 4.13.2-3172292 User Description: When placing more than 10 or 20 blocks on a moving pl ...

"r.SetRes 1920x1080f" fails to set fullscreen mode when executed through blueprint node

UE - Graphics Features - Jan 19, 2016

Executing the r.SetRes _x_f command fails to set fullscreen mode when executed through blueprint node. The issue occurs when executing the command through level blueprint and an actor blueprint plac ...

Cannot generate a callstack from the user's dll

UE - Foundation - Core - May 26, 2015

The dumplogs and any other logs requested from this user are listed within this AnswerHub post. I do have the DMP logs currently on my PC if you're unable to download them, they're 1.9GB Jarek S. h ...

Materials with Subsurface Profile not affected by Opacity value

UE - Graphics Features - Oct 24, 2017

A material with Shading Model set to Subsurface Profile is no longer affected by Opacity value in 4.17, 4.18, and 4.19 (Main) but was previously working as intended in 4.16. This is a regression. ...

Recast rcScopedDelete<T>::resizeGrow copies too many elements

UE - AI - Navigation - Nov 5, 2024

Context The Recast module has a helper struct rcScopedDelete for allocating, resizing and automatically freeing the allocated memory when the struct goes out of scope. Its allocation functions can ...

Crash occurs loading a sublevel containing landscape with ray tracing enabled

UE - LD & Modeling - Terrain - Landscape - May 13, 2020

In raytracing enabled, When loading a sublevel containing landscape with LoadStreamLevel function following error is shown. Assertion failed: Pair != nullptr [Link Removed] [Line: 584] Licensee re ...

Enabling Shader compilation via XGE for 4.18 Editor downloaded from Launcher doesn't work, prevents shaders from compiling at all, editor from loading in some cases

UE - Foundation - Build - Rocket (Installed Engine) - Nov 9, 2017

If you enable Shader compilation via XGE by setting r.XGEShaderCompile = 1 in ConsoleVariables.ini in 4.18 Editor downloaded from Launcher, it prevents shaders from compiling at all, and as a result ...

Incremental Cooks: Add dependencies on files loaded during Load/Save of the package

UE - Foundation - Data Pipeline - Cooker - Oct 19, 2022

Iterative and Incremental cooking are supposed to recook packages when their "inputs" change. Most of the time inputs are the package file itself and the other package files on which it has dependen ...

Translucent Materials and Atmospheric Fog Appear Black or Pink on Mac

UE - Graphics Features - Jan 3, 2018

I tested this on a Mac Pro in UE 4.15, 4.16, 4.17, and 4.18. As a possible workaround for the fog issue, I've discovered that setting Atmospheric Fog > Lighting > Disable Ground Scatter to "True" wi ...

Loading instanced static mesh causes memory leak in packaged game

UE - World Creation - Worldbuilding Tools - Foliage - Mar 3, 2021

The leaking variable is UInstancedStaticMeshComponent::InstanceDataBuffers. The memory block is passed to InitPerInstanceRenderData() via InstanceDataBuffers.Release(). But the function doesn't mana ...