[CrashReport] Fatal error: Cast of nullptr to Object failed

UE - Gameplay - Oct 5, 2017

This is a common and longstanding crash that has affected many users since at least 4.11. Source context not available (error in user code?). User DescriptionsI was duplicating a Set function in c ...

Crash when using 'DumpLightmapSizeOnDisk' Console Command

UE - Graphics Features - Mar 21, 2017

A crash occurs when using the 'DumpLightMapSizeOnDisk' in the Console Command. ...

[CrashReport] UE4Editor_Engine!UEdGraphPin::SerializePin() [edgraphpin.cpp:1497]

UE - Gameplay - Blueprint - Aug 11, 2016

Ctrl Z a massive copy pasteI was modifying a blueprint dealing with Draw material to render target.Undoing in Blueprint Editor.Kevin.R - Undid a pin reconnecting... investigating ...

[CrashReport] UE4Editor_Slate!FSlateApplication::GeneratePathToWidgetChecked() [slateapplication.cpp:2944]

UE - Editor - UI Systems - Slate - Sep 7, 2017

This is a slightly common crash in 4.17. In all cases, the crash appears to occur before a project is launched. Users have not provided any description of their actions when the crash occurs. Sou ...

ResavePackages commandlet breaks sublevel translation

UE - Gameplay - Feb 26, 2019

Rebuilding lighting with commandlet will move hidden sublevels Confirmed in 4.23 MAIN @ CL 5194133 ...

Editing multiple Math Expressions will crash the editor

UE - Gameplay - Blueprint - Dec 30, 2014

Editing multiple Math Expressions will crash the editor. ...

Crash when simulating in editor with a landscape actor selected

UE - LD & Modeling - Terrain - Landscape - Aug 8, 2016

The editor is crashing when clicking on a landscape actor in the viewport while simulating or when having a landscape actor selected and simulating. ...

VS2015 Update 3 prevents the editor from compiling code

UE - Foundation - Cpp Tools - UnrealBuildTool - Jun 28, 2016

Updating Visual Studio 2015 to Update 3 prevents code projects from compiling / creating new code projects ...

[CrashReport] Assertion failed: *LinkedTo == RequestingPin [edgraphpin.cpp:1747]

UE - Gameplay - Blueprint - Aug 29, 2017

This is a common crash occurring in 4.17 and back to at least 4.15. User Descriptionspress cntr Z Source Context 1734 check(ResolveType == EPinResolveType::LinkedTo); 1735 ...

Crash when adding foliage instances to unloaded IFA

UE - World Creation - Worldbuilding Tools - Foliage - Aug 31, 2023

Ran into a crash when trying to programmatically add foliage to a large WP level with some unloaded IFAs.  ...