Attached Actor's Scene Components reset to default class values when moved.

UE - Gameplay - May 23, 2019

When attaching a Blueprint CameraActor; who has a child Blueprint component(point light component) to another object in the scene. The Blueprint Actor's Components will reset to default class values ...

Crash When Copying Comment Box from a Blueprint to a Behavior Tree

UE - AI - Jun 8, 2016

The editor crashes when pasting a comment box from a blueprint into a behavior tree. Found in 4.12.1 binary. Reproduced in 4.11.2 binary and Main CL 3005971 Source Context94 95 fo ...

UAT crashing at end of build calling FScopedSceneLock_Chaos::LockScene()

UE - Simulation - Core - Nov 7, 2024

UAT has intermittent crashes at the end of  packaging. Looks related to  [Link Removed] . Could be that the solver is being destructed after the null check earlier in the function if this is multit ...

Spline Mesh Does Not Collapse Or Deform Properly

Tools - Apr 26, 2017

Spline meshes don't seem to collapse evenly if they have geometry in between the start and end points. The test project demonstrates this by having a spline mesh move its end point closer to the sta ...

Reaching max Pitch and Yaw while piloting an actor will cause the actor to roll randomly

Tools - May 30, 2017

Reaching max Pitch and Yaw while piloting an actor will cause the actor to roll randomly User Description: When pointing my view straight down or up the rotation values (x and z) go wild, this mak ...

FIntVector has some code that refers to it being two dimensonal

UE - Gameplay - Mar 10, 2016

There is code in the FIntVector class (IntVector.h) that seems to be copied from the FIntRect class which is a problem since FIntRect is two dimensonal while FIntVector is three dimensional. The one ...

r.SupportPointLightWholeSceneShadows Set to False Causes Crash When Trying to Place a PointLight

UE - Graphics Features - Jul 25, 2018

If you disable Support PointLightWholeSceneShadows and try to place a point light in a level the editor will crash.  Current work around is put shadows to low from engine scalability settings. Wor ...

The link to download Visual Studio 2013 in the Project Browser is invalid

Tools - Jan 5, 2015

When creating a C++ project in the Unreal Project Browser without a compiler installed, the following message appears with an invalid link: "No compiler was found. In order to use a C++ template, y ...

The color picker stops working after changing the color once on a color property on a component

UE - Editor - UI Systems - Slate - Nov 13, 2019

Changing the color on a component property via the color picker will cause the picker to stop working until it's closed and reopened. This occurs because a property change event is sent out, and the ...

Building for Gear VR Distribution fails due to missing Oculus lib

UE - Platform - XR - Jun 7, 2017

Users have reported that building for Distribution on Gear VR results in failure due to a missing Oculus library. The error they receive is as follows: UATHelper: Packaging (Android (ETC2)): [javac ...