Camera actor preview window does not display properly in orthographic view

Tools - Apr 13, 2015

Adding a camera to the scene and setting the projection mode to orthographic doesn't display properly in the preview window. ...

Compiling blueprint with anim bp crashes editor in MathExpr exec

UE - Gameplay - Blueprint - Jan 30, 2016

Compiling a player character blueprint that is tied to an anim bp crashes the editor. Frequency: 2/2 Crashreporter: N/A ...

LIVE: The editor crashes on Mac when attempting to open the attached Media Player .uasset

Tools - Nov 4, 2014

Does not occur on PC. CRASHREPORT: [Link Removed] CALLSTACK: <unknown module>! FOutputDeviceMacError::HandleError() <unknown module>! EngineCrashHandler(FGenericCrashContext const&) <unknow ...

Converting Texture Sample to Parameter when MipValue set to "Level" or "Bias"

UE - Rendering Architecture - Materials - May 27, 2015

When a Texture Sample's MipValue is set to something other than "none" (which adds the extra pin), attempting to convert that Texture Sample to a parameter will cause the Editor to crash. (Simple r ...

Mouse cursor appears outside of viewport while in PIE if UE4 and UDK are both open

Tools - Jan 15, 2015

Mouse appears outside of viewport window when cursor is dragged off of editor window while UDK is open. This occurs even if UDk is minimized. Note: Cursor will appear outside of editor window but a ...

A bug in UBTService_BlueprintBase makes it impossible to create "deactivation-only" BP implemented BT services

UE - AI - Jan 22, 2016

A bug in UBTService_BlueprintBase makes it impossible to create "deactivation-only" BP implemented BT services. ...

Editor crashes on Mac OSX when attempting to access a new game in Strategy Game on Launch

Tools - Oct 21, 2014

While launching StrategyGame to a Mac OSX desktop, the editor will crash if the user attempts to start a new game from the main menu. Frequency: 4/4 ...

Rendering issue when moving the Collision Presets' Edit Profile window

Tools - Nov 20, 2014

The user is reporting a rendering issue when moving around the Edit Profile window in Project Settings > Collision > Presets. Dxdiag is attached. The user has an HD7950 and has updated to the late ...

Atmospheric Fog actor creates a black ring on the horizon

UE - Graphics Features - May 16, 2016

When using the Atmospheric Fog actor, a black ring can be seen on the horizon. This can be seen by simply placing the Atmospheric Fog into an empty level. The issue cannot be seen if there is a sky ...

Translucency does not produce soft falloff on Samsung S7 Mali devices

UE - Platform - Mobile - Aug 3, 2016

RadialGradientExponential material function does not produce a soft falloff on that particular device. Does not repro on Adreno version. Seems like precision issue or driver bug that optimizes out s ...