Crash handling: Prevent reports of assertions during shutdown after an assertion

UE - CoreTech - Aug 8, 2024

CriticalErrors in FWindowsErrorOutputDevice::Serialize (and other platforms) run some code after the error is detected rather than immediately terminating the process. Some of this other code is spe ...

[CrashReport] UE4Editor_MovieSceneTools!FPropertySection::GetPropertyValue<float>() [propertysection.h:70]

UE - Anim - Sequencer - Sep 20, 2017

This is a somewhat common crash in 4.17. Users have not provided any descriptions of their actions when the crash occurred. Source Context 58 /** Gets the current value of the property w ...

[CrashReport] Crash in TerminateOnDeviceRemoved() - DXGI_ERROR_DEVICE_HUNG

UE - Graphics Features - Aug 29, 2016

Error message: Fatal error: [Link Removed] [Line: 176] Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - 'HUNG') Source Context: 161 162 const TCHAR* Reas ...

Foliage is placed on LevelInstanceActor does not follow basecomponent when the LevelInstanceActor moves

UE - World Creation - Worldbuilding Tools - Foliage - Jun 24, 2022

Foliage usually follows when the Transform of the placed ground or floor changes. However, if the ground or floor is a Level Instance Actor, it will not follow. The cause is in the code below. voi ...

Actor Class Reference can take invalid Value, can lead to crash

UE - Gameplay - Blueprint - Oct 4, 2017

REGRESSION: Can be certain as this testing was blocked by [Link Removed] Through a specific chain of events (see repro), it's possible to have a non-actor as the value for an Actor Class Reference, ...

Prevent unnecessary rebuilds of windows resource files

UE - Foundation - Cpp Tools - UnrealBuildTool - Sep 20, 2023

How Necessary are BUILT_FROM_CHANGELIST and BUILD_VERSION in Resource Files? We've been investigating ways to improve the speed of our iterative engine builds, and have found that the vast, vast maj ...

Editor crashes when attempting to open the Window menu after recompiling a Standalone Editor Window plugin

UE - Editor - UI Systems - Slate - Nov 26, 2018

Generated from CrashReporter Attempting to open the Window menu in the Editor after having used the Modules window to recompile a Standalone Editor Window plugin will result in the Engine crashing. ...

Crash on hot reload for DynamicDelegate

UE - Foundation - Core - Mar 23, 2020

This issue may be badly implemented, but the reference to the VTable may be incorrect during a hot reload. Crash always in sample project. Summary:Call ForeachRow function in Custom Struct constr ...

Regression: Several project settings, especially from built-in Plugins, are being silently erased when previously they were not, which is perceived as a bug

UE - Foundation - Feb 28, 2025

In UE's Project Settings, some pages are saved automatically to the project's "Config/Default<CATEGORY>.ini" file (meant to be version-controlled) on every change. Other pages have buttons "Set as D ...

Crash compiling animation blueprint with Spline IK node

UE - Anim - Rigging - Dec 13, 2016

Crash occurs when compiling an animation blueprint with a Spline IK node. This seems to occur only with the Start and End Bone settings set a certain (perhaps incorrect) way. In the example given, ...