Landscape on Mobile is broken

UE - LD & Modeling - Terrain - Landscape - May 8, 2018

UDN: https://udn.unrealengine.com/questions/431532/landscape%E5%9C%A8%E6%89%8B%E6%9C%BA%E5%B9%B3%E5%8F%B0%E6%98%BE%E7%A4%BA%E9%94%99%E8%AF%AF.html ...

TBigInt allocates twice as much memory as necessary for FString input

UE - Foundation - Core - Jul 9, 2015

TBigInt appears to allocate twice as much memory as necessary for the input. This produces an unexpected output of the input value. ...

Blueprint Nativization Build Error Caused by Child Actor Component

UE - Gameplay - Blueprint - Jan 4, 2018

A licensee upgraded their project to 4.18 and started to receive a compiler error when trying to build a project. This was tested in both their upgraded project and a fresh 4.18 project and the resu ...

Gameplay Effect Modifiers with Target Tags are Applied Incorrectly

UE - Gameplay - Gameplay Ability System - Mar 9, 2022

If you have a Gameplay Effect that uses an Attribute Modifiers, and this modifier has Target Tags specified, the modifier is applied unexpectedly:Adding a Required tag on the Target, the modifier do ...

Distance Field AO does not work below a landscape

UE - Graphics Features - Jun 25, 2015

This may be a limitation at the moment, but landscapes will block any AO generated from Distance Fields for anything that is below the landscapes surface. This can cause issues for anyone using a ca ...

HLOD proxy generation invalidates other clusters

UE - World Creation - Worldbuilding Tools - HLOD - Feb 7, 2020

When rebuilding a single HLOD proxy mesh in a world composition level that has many, the other proxy meshes will be marked as unbuilt and removed from the HLOD asset package. ...

Blueprint Actors' Static Meshes disappear after Building Level

UE - Gameplay - Blueprint - Nov 23, 2022

Reproduced 3/3 times. Was not able to reproduce in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. ...

Compiling Control Rig can break rig behavior in Sequencer

UE - Anim - Rigging - Control Rig - Aug 14, 2023

When working with a Control Rig in Sequencer, compiling the Control Rig used by an actor will cause the rig to no longer drive movement for the actor's skeletal mesh. Licensee provided sample proje ...

Blueprint interfaces do not appear to show up in children (in the interface section of the my blueprint panel)

UE - Gameplay - Blueprint - Jun 20, 2016

Blueprint interfaces do not appear to show up in children (in the interface section of the my blueprint panel) ...

uv scale of materials on hollow BSP does not persist after building geometry

UE - LD & Modeling - Modeling Tools - BSP - Mar 5, 2015

When creating a level with BSPs UV settings that are applied do not persist after building. Regression: Yes Working: CL-2386410 Broken: CL-2467323 ...