Clicking the Closed Loop check box for a Blueprint SplineComponent crashes the Editor.

Tools - May 12, 2015

Clicking the Closed Loop option in a new Spline Component results in the Editor crashing. This only occurs in 4.8 Preview 1 (so far). 4.7.6 and Main appear to be working correctly. ...

StopAtCurrentTime Node Sets Playback Position To 0.f In Level Sequence Actors

UE - Anim - Sequencer - Jan 20, 2020

Level Sequence actors have their current playback time to 0.f when using the StopAtCurrentTimeNode. In MovieSceneSequencePlayer.cpp line 288 TimeToResetTo is set to 0.f. Attached is a 4.24 example ...

Adding Multiple Scene Components to an Actor Causes Parenting Errors

UE - Gameplay - Components - Jan 5, 2016

Attempting to add multiple instances of a Scene Component that was created in code and contains a component such as a Box Collider causes the Box Colliders of each Scene Component to be parented to ...

Mouse Wheel Axis input gives different values in HTML5 packages, varying by browser

UE - Platform - Mobile - Sep 28, 2017

The value given by the Mouse Wheel Axis is usually 1.0 or -1.0, depending on the direction. In HTML5 packages, this value varies based off the browser that is used. On Firefox (56.0): 0.025 or -0.0 ...

Blueprint Tooltips Appear Behind Contextual Menu

Tools - Nov 30, 2015

On an iMac running OSX 10.11.1 a user reports that the tooltips are appearing behind the contextual menu. *See image ...

Odd Refraction on Close Planes

UE - Rendering Architecture - Jun 7, 2023

We're seeing odd refraction when we have two close planes where the front plane has a translucent shader with a refraction not equal to one. I've included a project with the following setup:Two equa ...

Editor Periodically Has Performance Drops In Basic Scenes

Tools - Dec 27, 2019

The Editor experiences performance drops even in the default basic level when left alone running. I experienced them every ~3 seconds. My graph didn't show the drops very clearly so the fps counter ...

Sound Cue Looping Node Tooltip Misleading

UE - Audio - Dec 11, 2014

Within the Sound Cue editor the 'Looping' sound node tooltip is a bit misleading. It says, "Defines how a sound loops; either indefinitely, or a set number of times." When clicking on this node in t ...

Media Plate Actor becomes blacked out when set to Spawnable in a Level Sequencer

UE - Virtual Production - Rendering - Jun 7, 2023

saving a media plate actor set to spawnable in a level sequence causes the media plate actor to become black. there are two known workarounds 1. toggling the Media plate to Possessable, and Spawnabl ...

Enabling wifi while a game is running causes the Lenovo S939 to freeze or crash

UE - Platform - Mobile - Jan 5, 2016

When turning on the wifi connection on the device, the game either crashes on the device or it'll freeze for about 15 to 30 seconds. Devices: 5231_S939 (ARM Mali-450 MP4; 4.4.2) - occurs on 2894_G ...