[CrashReport] UE4Editor_UnrealEd!FBlueprintCompileReinstancer::ReplaceInstancesOfClass_Inner() [kismetreinstanceutilities.cpp:1880]

UE - Gameplay - Blueprint Compiler - Oct 5, 2017

This is a somewhat common crash that has occurred throughout the 4.17 release. Users have not provided any description of their actions when the crash occurred. The callstack is similar to some ol ...

Error using Panoramic Capture Plugin with an absolute path

UE - Media Framework - Nov 17, 2023

When using the Panoramic Capture Plugin to render 360-degree images, it is possible to specify the output directory of the generated files. This can be any absolute path, or any relative path starti ...

[CrashReport] UE4Editor_UMG!UPanelWidget::GetChildIndex() [panelwidget.cpp:52]

UE - Editor - UI Systems - Nov 10, 2017

This is a trending crash coming out of the 4.18 release. User DescriptionsI did click on compile on a widget an UE4 crash Source Context 46 int32 UPanelWidget::GetChildIndex(UWidget* Conten ...

WorldPartitionActorDescs for LevelInstanceActors are broken when migrating world partitioned level

UE - World Creation - Worldbuilding Tools - Level Instances - Jun 13, 2023

WorldPartionActorDescs will be restored to the correct properties when resaved. They can also be fixed by the WorldPartitionResaveActorsBuilder commandlet. ...

Compile failure packaging for Linux in arm-unknown-linux-gnueabihf from Windows

Tools - Apr 20, 2017

Packaging for Linux is failing when setting the TargetArchitecture=ArmUnknownLinuxGnueabihf in the DefaultEngine.iniUATHelper: Packaging (Linux): UnrealBuildTool: C:\LinuxXC_ToolChain\v9_clang-4.0.0 ...

Crash after deleting Editor Utility Widget and accessing it from Window menu

Tools - Feb 25, 2019

Crash after deleting Editor Utility Widget and accessing from Window menu ...

Direct Capsule Shadows with Point Lights also project shadow on opposite side and direction

UE - Graphics Features - Dec 14, 2016

When using a Direct Capsule Shadows on a skeletal mesh with a Stationary Point light, depending on the point lights placement, light source radius, and nearby surfaces will cast the shadow on the op ...

Mouse cursor position is locked to center of screen when bShowMouseCursor is false

Tools - Nov 16, 2016

When you set bShowMouseCursor to false in a Standalone or packaged game while Default Viewport Mouse Lock Mode is set to either Always Lock or Lock on Capture, the cursor will become locked in place ...

Compile error during build stage when packaging for tvOS

UE - Platform - Mobile - Dec 9, 2016

Compile error packaging for tvOS: Does not affect iOSUATHelper: Packaging (tvOS): UnrealBuildTool: D:\Build\joseph.wysosky_Main\Engine\Source\Runtime\Core\Private\iOS\IOSAppDelegate.cpp(388,12): ...

BP compiler crash

UE - Gameplay - Blueprint Compiler - Nov 24, 2020

The crash can be reproduced on the 4.26P7 or the Release4.26 stream. Following the repro steps will result in hitting the following assert: Assertion failed: !HasAnyFlags(RF_NeedLoad|RF_NeedPostLo ...