Translucent materials that use a render target has an incorrect alpha when using ES3.1 Preview in Editor

UE - Graphics Features - Aug 20, 2019

The opacity of a render target used in a material appears to get over written when previewing Android ES3.1 in PIE if the material is set to be translucent. ...

Lightmap Coordinate Index is not automatically set to 1 on import any longer with lightmap UV

UE - Editor - Content Pipeline - Import and Export - Sep 6, 2016

When importing a static mesh with a second UV channel setup for the lightmap the second UV is no longer being automatically assigned as the lightmap coordinate index. In 4.12 the second UV detected ...

Landscape holes retain collision if Mip level changed to 1

UE - LD & Modeling - Terrain - Landscape - May 19, 2015

Landscape holes have collision if the mip level of the landscape is changed from 0 to 1. ...

Retopologized landscapes ignore collision when mip level set to 1

UE - LD & Modeling - Terrain - Landscape - May 14, 2015

Object collision ignores landscape components that have been retopologized if the landscapes collision mip level is set to 1 instead of 0. ...

Draw Line in HUD does not respect alpha < 1.0

UE - Gameplay - May 2, 2016

Draw Line in HUD does not respect alpha < 1.0, instead drawing completely opaque in all circumstances. Regression (No) issue (does) occur in 4.10.4 ...

Changing number of existing UHierarchicalInstancedStaticMeshComponent in Blueprint causes crash.

UE - Graphics Features - Oct 14, 2016

If using a UHierarchicalInstancedStaticMeshComponent in a C++ class and adding instances via the OnConstruction( ) function, editor can crash. ...

Missing space for Support UV From Hit Result setting Project Settings

UE - Gameplay - Aug 4, 2016

In the Project Settings, there is a typo for the Support UV From Hit Result Setting. There is a missing space between "UV" and "From". ...

UnrealVS cannot be installed with VS2019 16.1

UE - Foundation - Cpp Tools - UnrealVS - Jun 3, 2019

If a user has Visual Studio 16.1 installed, UnrealVS will report that it is not compatible and refuse to install. ...

UHT "Type TArray is not supported by blueprint" error message is ambiguous

UE - Foundation - Cpp Tools - UnrealHeaderTool - Jan 11, 2019

An overly generic error message is produced when you have a TArray UProperty that contains a non-blueprint friendly type. For example: UPROPERTY(EditAnywhere, BlueprintReadWrite, editfixedsize) TA ...

Crash when using Find Substring node if the starting position is higher than the number of characters in the string being searched

UE - Gameplay - Blueprint - Jul 17, 2017

If the "Start Position" in the "Find Substring" node is larger than the number of characters in the "Search in" field a crash will occur. ...