Memory Leak occurring when making procedural content with the Construction Script

UE - Gameplay - Blueprint - Nov 24, 2015

When modifying an object that makes changes using the construction script seems to cause a memory leak. The memory that is used seems to never be freed up. ...

Spring Controller seems inverted/counter-intuitive

OLD - Anim - Nov 16, 2015

Two different users have pointed out that the spring controls seem inverted and/or counter intuitive: The first post: https://answers.unrealengine.com/questions/328098/spring-controller-seems-to- ...

The Nativize Blueprint Assets option causes C++ collision components to ignore their extents set in a blueprint

UE - Gameplay - Blueprint Runtime - Jan 11, 2017

Using the Nativize Blueprint Assets option can cause the extents of a collision component defined in code and inherited by blueprints to use its default values in a packaged build instead of the ext ...

Min Roughness Light Setting Does Not Work In Forward Shading

UE - Graphics Features - Mar 1, 2017

Min roughness in the light settings currently aren't working in the forward shading mode. ...

Ensure condition failed / Crash on BP Compile after adding variable

UE - Gameplay - Blueprint Compiler - Jan 26, 2018

Crash when compiling BP (containing user defined struct + object reference) after adding variable. ...

Android: Mali Txxx GPUs Encounter Stretching Geometry When Running with Support GPU Scene Enabled

UE - Platform - Mobile - Nov 27, 2019

When attempting to run SunTemple with r.Mobile.SupportGPUScene enabled on some Mali GPUs, the project renders with what looks like pieces of the geometry stretching across the level and bending out ...

Particle System Components don't inherit owner's time dilation

UE - Niagara - Feb 7, 2020

This is a regression introduced by the particle system manager. It does not account for the owning actor's time dilation when ticking the particle system components.  ...

Flickering shadows/GI when DrawMaterialToRenderTarget is called per tick in PIE

UE - Rendering Architecture - Jul 11, 2024

When DrawMaterialToRenderTarget function is called on tick and actors are spawned in game, the lumen shadow/GI visually flickers. Debugging shows that the lumen screen probes are flickering as well. ...

UGS bug when Reading Column Weights from Config Files

UE - Foundation - UGS - Sep 12, 2025

Blueprints components setup through code cannot have the parent socket set inside the blueprint

UE - Gameplay - Blueprint - Aug 28, 2015

If a component is created/setup through code and set as the child of a mesh component, clicking the magnifying glass in the Parent Socket field does not bring up the list of mesh sockets to attach t ...