Custom iOS icons don't appear using BP projects [4.18.2]

UE - Platform - Mobile - Dec 14, 2017

So far this has been tested on Mac deploying SunTemple to an iPhone 7 (10.3.3). It occurred with both Launch On and File Package. This does not occur when deploying StrategyGame from the same Mac t ...

Material Instance values lost when using Material Parameters inside of multiple Material Functions

UE - Rendering Architecture - Materials - Mar 30, 2018

Material Instance parameters (that derive from parents using material functions) can have their data shifted or not saved. ...

AnimSequence's play rate is doubled when in a SyncGroup

OLD - Anim - May 11, 2018

It is because that the RateScale is multiplied twice. First at UAnimSequenceBase::TickAssetPlayer : {{ const float PlayRate = Instance.PlayRateMultiplier * this->RateScale;}} Second at UAnimSeq ...

Generate Lightmap UVS Doesn't Update the Lightmap Coordinate Index

Tools - Jul 23, 2018

When importing an fbx file and using 'generate lightmap uvs', the light map coordinate index will not update correctly. Working properly in 4.19 CL# 4033788 Found in 4.20 CL# 4212847 and 4.21 CL# ...

Impossible to Batch Build on UnrealVS with Japanese Visual Studio

UE - Foundation - Cpp Tools - UnrealVS - Dec 14, 2018

Crash when opening a different level after opening the preloaded level using Asset Manager

UE - Gameplay - Jan 29, 2019

After  opens the preloaded level using Asset Manager, opening another level before unloading the level will crash. Because AssetManager holds FStreamableHandle of the level, garbage collection is no ...

Shader Complexity viewmode does not work on masked materials

UE - Graphics Features - Oct 16, 2019

In engine versions 4.23 and above, the Shader Complexity Viewmode doesn't render appropriately for meshes with masked materials. Tested in 4.22.3 (CL - 7043647), 4.23 (CL - 8386587), 4.24 (CL - 961 ...

Single Channels From a Curve Atlas Node Does Not Remap to New Values

UE - Graphics Features - Oct 18, 2019

Single Channels from a Curve Atals Node Does Not Remap to New Values. Working as expected in 4.22 CL# 7053642 Found in 4.23 CL# 8386587, 4.24 CL# 9630693, 4.25 CL# 9615021 This is a regression. ...

[Landscape] Multiple Level Instances with Landscape causes duplicate GUID issues.

UE - LD & Modeling - Terrain - Landscape - Jun 18, 2020

Loading the same level twice through Load Level Instance BP Node will cause issues with levels containing Landscape as they will end up with the same GUID and the underlying systems do not support t ...