Crash during PIE using the Spawn Actor node on EventBegin Play on Mac

UE - Platform - Apple - Feb 23, 2016

A user has reported a crash when attempting to use the 'Spawn Actor' node within his level blueprint. I was able to follow the repro steps provided in the original answerhub post and get the crash ...

STARTMOVIECAPTURE no longer works in a single player game

UE - Anim - Sequencer - Jan 27, 2017

STARTMOVIECAPTURE no longer works in a single player game [Link Removed] looked into the code and found that it's in the EditorServer code. We tried it with two players and then it appears to work ...

Crash when Reimporting SpeedTree asset with Billboard Material reset to the default World Grid Material

UE - Editor - Content Pipeline - Import and Export - Feb 7, 2017

A crash occurs when reimporting a SpeedTree asset after clearing the material billboard element and setting it to the default world grid material. The licensee reporting the issue mentions to worka ...

Movable Skylight with DFAO creates Dark Areas when Combined with Reflective Material

UE - Graphics Features - Jun 9, 2016

A user on the AnswerHub pointed out that his reflections when using a Movable Skylight with Distance Field Ambient Occlusion produces black results when combined with a reflective material. I trace ...

Set Actor Location and Teleport from a Character when touching an Actor simulating physics will launch the Actor

UE - Gameplay - Jul 23, 2015

Set Actor Location and Teleport from a Character when touching an Actor simulating physics will launch the Actor. User supplied a video demonstrating the problem: [Link Removed] Test project in Pa ...

Body elements of a Paper Terrain Spline Data Assets do not have collision

UE - Gameplay - Paper2D - Mar 8, 2015

Body elements of a Paper Terrain Spline Data Assets do not have collision. When the second handle is dragged to lengthen the spline, only the Start and End Caps show collision. The end cap will show ...

High Res Screenshot Tool Scene Color rendering washed out as EXR

UE - Graphics Features - Dec 8, 2015

When rendering out the Buffer Visualization Targets with the HDR setting on, the resulting Scene Color EXR is rendering significantly washed out compared to the Buffer Viz. in the Editor and if comp ...

Run Command fails when launching code project onto Mac from the editor

UE - Platform - Apple - Apr 18, 2017

This only affect Launching on code projects. Packaging code projects works fine.LogPlayLevel: Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Unabl ...

Regression: "Play particle effect" anim notifies are not seen in the editor playing level sequence/matinee when Attached is set to false

UE - Graphics Features - Dec 21, 2017

Not Attached particle system is not seen in the viewport of the editor. This particle will be seen normally when PIE.  Regression? Yes. This issue is not reproduced in 4.17 version. You can simply ...

FPS drop when deploying to a Mobile device

UE - Platform - Mobile - Feb 27, 2015

The FPS drop off of this users project is significant between version of UE4. I tested this issue on a Samsung Galaxy Note 10.1 2014 edition. I also tested on a iPad air 2 on 8.1. There was a sig ...