GPU Crash may occur when using Nanite Tesselation on landscape with several shadow casting local lights

UE - Graphics Features - Nanite - May 5, 2025

The GPU may time out in NaniteSplit when drawing VSM shadows for Nanite Tessellated landscape with in a scene with several local shadowed point lights. The issue doesn't reproduce in 5.6, likely to ...

Crashes upon project start up

Tools - Feb 10, 2015

Crash Report: [Link Removed] After downloading latest revision, user is no longer able to open project due to constant crash. ...

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 ...

Connecting a Client to a Server in PIE with Auto Connect to Server disabled will crash the editor

UE - Networking - Feb 22, 2016

Connecting a Client to a Server in PIE with Auto Connect to Server disabled will crash the editor. EDIT: simple test project attached. Make sure Auto Connect to Server is disabled, and PIE with 2 p ...

No way to access Gameplay Debugger can't from Japanese keyboard out-of-box

UE - Editor - UI Systems - Localization - Dec 5, 2016

Gameplay Debugger is assigned to apostrophe by default. (Project Settings>Gameplay Debugger) While Japanese keyboards can enter the char by Shift+7 key combination, this key combination does not rec ...

FDateTime instances are reset to default on hot reload

UE - Gameplay - Blueprint - May 31, 2017

If an FDateTime variable is created in code and has a default value set in blueprints, any instance that is set to the blueprint default value changes to the code default on hot reload. This includ ...

The default hotkey for Delete is not properly displayed in the Edit menu on Mac

UE - Platform - Apple - Jul 7, 2017

The Delete option in the Edit menu on Mac does not display the hotkey that is set for it (by default it is the Delete key). On Windows, this option does display the set hotkey. Changing the hotkey ...

[CrashReport] UE4Editor_Engine!USkeleton::GetMeshLinkupIndex() [skeleton.cpp:420]

OLD - Anim - Jul 19, 2017

This is a common crash affecting users in 4.16, unfortunately they have not provided any additional information. Source Context 406 if ( IndexPtr == NULL ) 407 { 408 L ...

[CrashReport] UE4Editor_Slate!FDelegateBase::Unbind()

UE - Editor - UI Systems - Slate - Jul 24, 2017

This is a common crash affecting users in 4.16. User Descriptionstrying to import a texture D: Source Context 137 /** 138 * Unbinds this delegate 139 */ 140 ...

Owner No See option does not correctly apply to widgets using screen space

UE - Editor - UI Systems - Aug 17, 2017

When using the Owner No See option with Widgets, if the widget is set to display on the screen rather than the world, then the option does not affect the widget as intended. Other forms of changing ...