Step/Stop/Resume buttons change positions on blueprint editor window when stepping through blueprints

UE - Gameplay - Blueprint - Sep 23, 2015

While stepping through blueprints utilizing breakpoints, the step/stop/resume buttons often change places slightly depending upon which nodes are being stepped through. This can be problematic while ...

Changing a variable during simulate will cause physics object to jump around

UE - Simulation - Physics - Mar 16, 2016

If a user has an actor that is simulating physics during simulation of play in the editor and they then change the value of a variable trough the details panel below the world outliner then the acto ...

Pressing Play/Simulate on Window without Focus does not Function on Mac

UE - Platform - Apple - Jun 2, 2015

If a user attempts to 'PIE' within a window that does not currently have focus, the 'PIE' will not execute. The user provided a video on his answerhub post which illustrates the issue clearly. In ...

The Ability to Import Compatible Assets While Maintaining Original Folder Structure No Longer Functioning

UE - Editor - Content Pipeline - Import and Export - Jun 17, 2016

Before UE4.12 A user could drag a folder and its sub-directories from the Finder in Windows into the Content Browser and it would keep the folder structures. Now, doing the same results in the asset ...

User-Defined Variables Reset to Null When Not Marked as Editable

UE - Gameplay - Blueprint - Jun 28, 2016

When running the construction script of an actor blueprint, user-defined variables are reset to NULL each time the script is run. This seems inconsistent, as if the variables are set to Expose on S ...

Skeletal Mesh Import Issue

UE - Editor - Content Pipeline - Import and Export - Nov 25, 2014

After importing a skeletal mesh FBX (*IMPORTANT: With "Import Mesh" not selected the first time) the option box to "import mesh" disappears and the user is forced to use the originally selected "ske ...

Reimporting a static mesh will reset multiple properties in the Static Mesh Editor

Tools - Oct 15, 2015

When reimporting a static mesh settings that have been changed in the Static Mesh Editor will be reset to the defaults. ...

Crash when Saving Level after Successfully Building with Lightmass on Large Landscapes

UE - LD & Modeling - Terrain - Landscape - Jan 4, 2017

A crash occurs when attempting to save a level after building static lighting for a large landscape. I was originally investigating a memory leak issue with landscapes, and the user provided the pa ...

[CrashReport] Linux crash - FLinuxApplication::CreateLinuxApplication()

UE - Platform - Linux - Jul 20, 2017

This is a longstanding Linux crash that occurs with some frequency each release. ...

Actors attached to Spring Arm with rotation lag avoid pitches of 90 and -90 degree

UE - Gameplay - Jan 19, 2018

From User Bug Submission: When an actor/component (e. g. a camera) rotates around another object using the rotation lag of USpringArmComponent, it cannot rotate to the top or the bottom. At these ...