UDN: Editor ignores platform-suffixed solution file names when checking for a compiler

UE - Foundation - Cpp Tools - UnrealBuildTool - Dec 3, 2015

https://udn.unrealengine.com/questions/270801/cannot-open-modules-panel-its-missing.html MikeF: The "Modules" button will automatically become hidden if the editor thinks that the user is not a pr ...

MakeSureMapNameIsValid can return other assets if the name matches an Engine Content asset

UE - Foundation - Core - May 23, 2017

MakeSureMapNameIsValid will take in a FString, look for an asset matching that FString and edit it to match the asset path of the asset found. This issue is caused by the function not limiting its s ...

Custom Plugin names appear twice in editor

UE - Foundation - Cpp Tools - Plugin System - Nov 8, 2017

Calling the function FTabSpawnerEntry& RegisterNomadTabSpawner( const FName TabId, const FOnSpawnTab& OnSpawnTab ); to display the name of a new plugin causes the name to be displayed twice. In t ...

Interface Message Call does not work correctly with ExpandEnumAsExecs meta specifier

UE - Gameplay - Blueprint - Jan 18, 2018

When using ExpandEnumAsExecs for the execution of a BlueprintImplementableEvent in a C++ interface, if the interface function is called by message, the result will always be as though you executed t ...

Baked materials containing Texture Object are black

UE - Graphics Features - Apr 9, 2019

Using a texture object in material when creating a baked material will result in black material. Confirmed in 4.23 MAIN @ CL 5806859 User also reports "this also applies to the material as seen by ...

Connection is broken between Custom event and Collapsed Graph, which is promoted to Macro

UE - Gameplay - Blueprint - Oct 8, 2020

When user promotes collapsed graph that has connection to custom event to macro, connection between that custom event and new macro is brokenThis is not the case when directly collapsing selected no ...

Scaling sphere with gizmo causes it to not work with line trace

UE - Editor - Workflow Systems - Mar 16, 2021

Changing the scale of an actor with the level editor gizmo follows a very different codepath than changing it via the details panel. A side effect of this seems to be that line traces will no longer ...

Renaming a level containing Text3DComponent can cause crash

UE - Virtual Production - Jan 6, 2023

BuildTextMesh function queued as AsyncTasks may be called during saving (renaming) a level containing Text3DComponents.  The following workaround fix the problem. void UText3DComponent::BuildTextMe ...

Draw Material To Render Target Inverting Alpha Masks

UE - Graphics Features - Aug 5, 2016

When using the new Draw Material to Render Target function in conjunction with a Material using a masked opacity channel, the render texture is inverted. See attached images for reference. As a not ...

Instanced meshes velocities fix

UE - Graphics Features - Sep 21, 2016

"We've been able to enable velocity rendering when using instanced rendering. However, by looking at the generated vertex shader the computation of the previous position seems to be incorrect: flo ...