Conflicting FName for components freezes the editor with no warning

UE - Foundation - Core - Jun 24, 2015

If two code components have the same TEXT("") name in the CreateDefaultSubobject call the code will compile correctly but the editor will freeze when adding an instance of the class or classBP to th ...

Cannot bind event dispatchers between two blueprints that share a parent class

UE - Gameplay - Blueprint - Jul 23, 2015

Cannot bind event dispatchers between two blueprints that share a parent class. This issue also occurs if you use the parent as a variable in the child. The bind event dispatcher seems to only take ...

Sprites using a lit material render black in orthographic views

UE - Graphics Features - Dec 23, 2014

Sprites using a lit material render black in Orthographic views. Sprites are rendered as expected in Perspective view. ...

ESplineMeshAxis Enum is not available as a variable or struct

Tools - Aug 14, 2015

ESplineMeshAxis Enum is not available as a variable or struct User Description: I have a struct that is responsible for holding many of the properties of my spline meshes. I want it to hold the ES ...

Non-Local Players Cannot Hear Opponents Footsteps in Shooter Game

Docs - Samples - Dec 31, 2015

Non local players cannot hear opponents footsteps and other various notifies, however, other sounds such as gunfire, etc. are present. Regression: User reports this issue is not present in the 4.8 ...

Using Show Mouse Cursor and Ejecting Prevents Actors from Being Moved

Tools - Mar 31, 2016

When you have the mouse cursor set to show in game, if you use shift+f1 to unlock the mouse, eject, and then attempt to click and move an actor using the transform gizmo, you are unable to do so. S ...

MAC: Drop Down Menus Continuously Flicker (In Certain Conditions)

UE - Editor - UI Systems - Slate - Nov 4, 2015

Shown in the Behaviour Tree Graph, if the Dropdown menu's length exceeds the Behavior Tree Graph window, the menu will try to offset it's position in order to display all information and will flicke ...

Crash when loading old data after changing type of Map Value to related type

UE - Gameplay - Blueprint - Jul 17, 2017

There is a crash when changing the value type of a MapProperty to something else that provides a ConvertFromType handler. The backward compatible loading code is not correct for map properties and e ...

r.MipMapLODBias has no effect on Texture Sample using Shared:Wrap or Shared:Clamp

UE - Graphics Features - Aug 11, 2017

If a material contains a Texture Sample node with Sampler Source set to Shared:Wrap or Shared:Clamp, setting r.MipMapLODBias will have no effect on the blurriness of the material. Regression: No - ...

[CrashReport] Mac/Metal Intel compiler crash - UE4Editor-MetalRHI.dylib!CreateMTLRenderPipeline()

UE - Graphics Features - Oct 27, 2017

Mark S: This is an Intel compiler failure on macOS 10.12.6. Callstack from LogAssertion failed: [File:/Users/build/Build/++UE4+Release-4.18+Compile/Sync/Engine/Source/Runtime/Apple/MetalRHI/Privat ...