[CrashReport] Assertion failed on Linux: SharedContext.hGLContext in OpenGLLinux.cpp

UE - Platform - Linux - Jun 16, 2017

This is a top community crash occurring on Linux. The two linked CrashGroups have nearly identical callstacks. A log file is attached. Additional information is currently unavailable. Callstack f ...

Attached Project Crashes on PIE and when Compiling or Attempting to Delete Third Person Character BP

UE - Gameplay - Blueprint - Nov 20, 2015

In the attached project, there are crashes that occur in a few instances. When you open the Third Person Character BP, compiling or attempting to delete it will cause the editor to crash. Also, atte ...

[CrashReport] UE4Editor_Engine!AActor::IncrementalRegisterComponents() [actor.cpp:4065]

UE - World Creation - Worldbuilding Tools - Foliage - Aug 22, 2017

This is an intermittent crash coming out of the 4.17 release. User DescriptionsI had previously added the Open World Demo Collection into my project. When I tried to delete the folder Kite(Somethi ...

[CrashReport] UE4Editor_ShaderCore!FVertexFactory::Set() [vertexfactory.cpp:180]

UE - Graphics Features - Jul 5, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Source Context: 165 return *VertexFactoryTypeIt; 166 } 167 } ...

When using Set Master Pose Component, crash occurs when target has cloth

OLD - Anim - May 18, 2017

Description: Appears directly related to using Set Master Pose Component when the target component has cloth Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Lin ...

Rendering of a Text Widget with Outline does not track LayerId correctly

UE - Editor - UI Systems - May 27, 2025

Text widget with Outline uses 2 LayerId levels to draw the outline and the text glyphs. This can be seen in function FSlateElementBatcher::AddShapedTextElement(), where lambda BuildFontGeometry() is ...

Incorrect Velocity Calculation at Animation Sequence Transitions in Level Sequence

UE - Anim - Sequencer - Feb 18, 2025

When adding an Animation Track to a Level Sequence and placing Animation Sequences back-to-back without gaps, the velocity can be miscalculated at the transition between sequences. This issue occur ...

[CrashReport] UE4Editor_Core!FWindowsWindow::Initialize() [windowswindow.cpp:199]

Tools - Mar 1, 2017

Error message: Assertion failed: 0 [Link Removed] [Line: 199] Window Creation Failed (1158) Source Context: 184 VirtualHeight = ClientHeight; 185 186 // We call reshape w ...

[CrashReport] UE4Editor_CoreUObject!UObjectPropertyBase::Identical() [propertybaseobject.cpp:60]

UE - Foundation - Cpp Tools - Hot Reload - Nov 17, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Access violation - code c0000005 (first/second chance not available) Source C ...

[CrashReport] UE4Editor_Core!FArchiveFileReaderGeneric::InternalPrecache() [filemanagergeneric.cpp:697]

UE - Foundation - Core - Jun 20, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: false [Link Remo ...