Launching on IOS, sessions do not appear in the Session Frontend

UE - Networking - Oct 17, 2018

Licensee reports: Dug into this further and our iOS devices aren't receiving any of the handshake messages sent by the Session Frontend (or any other UDP messages for that matter) because multicast ...

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 ...

ZenGarden or project with MSAA enabled crashes on iPhone 6 and 6+

UE - Platform - Mobile - Jul 19, 2017

Zen Garden crashes on the iPhone 6+ before anything appears onscreen. Occurred on: iPhone 6+ on 10.3.2 Didn't occur on: iPhone 6S on 10.3.2 ...

Dealing with spaces in perforce directories

UE - Foundation - Horde - May 26, 2025

Hello, We're encountering a fatal error when trying to set up a project in Horde using the AutoSdk: Fatal error: EpicGames.Perforce.PerforceException: Unable to parse view map entry: &quot ...

Skylight Indirect lighting Intensity has no effect

UE - Graphics Features - Dec 28, 2015

The Skylight actor has minimal effect on indirect lighting compared with 4.10.1 and the Indirect Lighting Intensity slider has no effect at all. Image attached for comparison bwtween 4.10.1 and 4. ...

[CrashReport] Fatal error: Cast of nullptr to Actor failed - UE4Editor_CoreUObject!CastLogError()

Tools - Jul 19, 2017

This is a common crash affecting users in 4.16, and has been occurring since at least 4.14. It has affected more than 400 unique users, unfortunately they have provided little information. User Des ...

Game Crash when switching to full screen in Game with Sumsung Odyssey HMD device connected

UE - Platform - XR - Nov 26, 2019

crash log from lincesee: [2019.11.11-10.34.30:123][228]LogOutputDevice: Warning: Script Stack (0 frames): [2019.11.11-10.34.30:123][228]LogWindows: Windows GetLastError: 操作成功完成。 (0) [2019.11.11-1 ...

Animation Sharing Plugin Removes Mesh Collision

OLD - Anim - Jun 11, 2019

The referenced documentation does not state anywhere about collision being affected by animation sharing nor is the user expecting it to be affected. Even when the Collision Preset is overridden to ...

GPU Particle Emitter noticable stutter with steady stream

UE - Graphics Features - Apr 1, 2016

When using a GPU particle and setting a steady stream there is an obvious stutter compared to 4.10.4 where everything worked smoothly. Regression: YES This issue did not occur in 4.10.4 CL-2872498 ...

Adding Megascans 3D objects to a scene can cause Twinmotion to freeze and Crash on macOS.

TM - Core - Dec 11, 2024

Looking at the logs when it happened, the logs are spammed with the following: [2024.12.10-20.34.12:438][514]LogZenServiceInstance: Display: Unreal Zen Storage Server HTTP service at [::1]:8658 sta ...