IToolkit.h is not self-contained and requires additional includes to compile

Tools - Sep 14, 2015

Using IToolkit.h in a file causes the project to not compile because IToolkit.h requires additional include statements. Suggestion to add SlateBasics.h as an include to IToolkit.h so that it can co ...

Custom Depth Stencil Pass does not function on Mac

UE - Rendering - Sep 11, 2015

The Custom Depth Stencil Pass when enabled in the Editor will not show any information in the Buffer Visualization on a Mac ...

Attaching a camera actor component that is the child of a spring arm component to a new skeletal mesh's socket will cause a crash on the server

UE - Gameplay - Sep 11, 2015

A User is Spawning an actor, taking the skeletal mesh from it and is attaching a camera from another actor to a socket that is owned by the spawned mesh. This only happens if the camera that is move ...

Blendspace Animation Lag for Morph Targets

OLD - Anim - Sep 11, 2015

Blendspace animations of morph targets play at a slightly but noticably different rate between the 4.8 and 4.9 version of the UE4. ...

Decals ignore Receives Decal Flag on movable static meshes on Mobile devices or Preview

UE - Platform - Mobile - Sep 10, 2015

Decals when rendered on a mobile device or via mobile preview will ignore the receives decal flag. In Editor:[Image Removed] Mobile Preview:[Image Removed] ...

Alt-tabbing out of a Standalone App or packaged version of a game does not trigger LostFocus or ReceiveFocus

Tools - Sep 9, 2015

If a user uses Alt-tab to change to another window, the ReceivedFocus and LostFocus functions are not called as they would usually be called when using something such as Shift+F1 or Ctrl+Esc. Note: ...

A Blueprint that references a macro from a macro library cannot be saved if the macro is deleted and then the deletion is undone

UE - Gameplay - Blueprint - Sep 9, 2015

A Blueprint that references a macro from a macro library cannot be saved if the macro is deleted and then the deletion is undone. The following error is given: Can't save ../../../../../../UnrealEn ...

VisualLog redirections are broken after PIE finishes

UE - AI - Sep 9, 2015

Visual logger cleanup should remove only redirections registered from that single world, leaving others intact (e.g. created for editor world) ...

DrawMaterial() Function not Rendering Translucent Material to HUD

UE - Rendering - Sep 4, 2015

After creating a new HUD blueprint class and calling it to render a translucent material, the material does not render at all. This is not the case with any other Blend Mode when called to render to ...

Set Morph Target not being sent to children of Inherited Mesh

OLD - Anim - Sep 4, 2015

In previous versions of UE4, Set Morph target to call the Inherited Mesh and would result in any children of the Inherited Mesh that shared that morph target name to morph. In UE4.9 this no longer ...