Framing an object after locking a camera in matinee closes the editor.

Tools - Sep 4, 2015

After creating a matinee actor and adding a camera group, I lock the camera group. Then I go back to the viewport and select a mesh in the scene. Pressing F to frame that object closes the editor wi ...

Double-Clicking a Camera in the World Outliner Changes Its Position

Tools - Sep 29, 2015

When you double-click on a camera in the world outliner to snap to its location, it instead moves the camera from its original position. Found in 4.9.1 binary. Could not reproduce in 4.8.3, this i ...

Adding a UMG widget to the viewport twice results in a crash.

UE - Editor - UI Systems - Sep 8, 2015

Attempting to add the same widget to the viewport twice will result in an assertion and crash. ...

Reflection Vector not translating into ES2 when applied via an Emissive Color

UE - Platform - Mobile - May 28, 2015

When you have a Reflection Vector plugged into a Cubemap and applied to the Emissive Channel of an Unlit Material, the Cubemap will not render on a mobile device with ES2 or in ES2 (Mobile/HTML) Pre ...

Naming a Plugin with a number as the first character causes errors

UE - Foundation - Cpp Tools - Plugin System - Aug 27, 2015

When naming a plugin, having a number as the first character causes a toast to pop up that says: "Failed to generate project files" However, the plugin is available to look at and edit in Editor, a ...

iOS pinch only detects command once

UE - Platform - Mobile - Jul 16, 2015

The pinch command only triggers once on iOS devices. ...

Landscape Grass Type will not build with static lighting leaving 'Lighting needs to be rebuilt warning.'

UE - World Creation - Worldbuilding Tools - Foliage - Sep 3, 2015

When using the Landscape Grass Type and using a Static or Stationary light will throw the 'Lighting needs to be rebuilt' warning. ...

Destructible Meshes will flicker in a Packaged Game

UE - Simulation - Physics - Destruction - Apr 9, 2015

Destructible chunks will flicker after the DM has been fractured. These chunks will flicker until they are in a sleep state. Using Sensitive Sleep Family will allow this to stay prolonged. Waking th ...

promoting a variable to a local variable in another blueprint creates compile error.

UE - Gameplay - Blueprint - Sep 30, 2015

If a local variable set variable is copied/pasted over to a second blueprint and the input pin is promoted to a local variable, compiling the blueprint will cause a compile error to appear until the ...

Hot Reload crash on PIE with custom AIController and Perception Component

UE - AI - Sep 29, 2015

If a pawn in the level is using a custom AI Controller that sets the AIPerceptionComponent in code, the editor will crash on PIE after a hot reload. CrashReporter: [Link Removed] ...