[5.4+] World Partition Landscape Spline Meshes Builder - Source landscape splines are not properly removed/hidden

UE - World Creation - Worldbuilding Tools - HLOD - May 30, 2025

LandscapeSplineActors and LandscapeSplineMeshesActors are not behaving as expected in 5.4 or 5.5. Testing in 5.4 the issue mostly seems to stem from issues with the Target Landscape -> Landscape Ac ...

[CrashReport] UE4Editor_ClothingSystemRuntimeInterface!UClothingSimulationFactory::CreateSimulation()

UE - Simulation - Physics - Character - Jun 27, 2017

This is a common crash in the 4.16 release. Users have not provided descriptions so additional information is not currently available. Source Context 28 // Any clothing simulation factory s ...

Sequencer Crash when Hovering over Binding Properties on a Component with Spaces in its Name

UE - Anim - Sequencer - Nov 7, 2025

Crash when binding to new components that have spaces in their name and you attempt to access their bindings. ...

[CrashReport] Mac crash - libobjc.A.dylib!objc_retain() [UnknownFile]

UE - Platform - Apple - Nov 10, 2017

This is a longstanding but low frequency Mac crash. User DescriptionsChanging camera shake values and testing in a new editor window Callstack from Log[2017.11.09-19.23.22:392][ 63]LogMaterial: Mi ...

[CrashReport] UE4Editor_Core!FText::IsEmpty() [text.cpp:230]

Tools - Apr 6, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: Index >= 0 [Link Removed] [Line: 401] Source Context: 215 ...

Editor Crashes When Reparenting a Trigger Sphere to a Trigger Capsule

UE - Simulation - Physics - Aug 15, 2016

Reparenting a blueprint derived from Trigger Sphere to Trigger Capsule will cause the editor to crash. This is a regression. This did not occur in 4.11.2. Source Context: 163 164 ...

[CrashReport] UE4Editor_Slate!SMultiBoxWidget::GetCustomizationVisibility() [multibox.cpp:931]

Tools - Jun 14, 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: Result == FPrope ...

[CrashReport] Mac Metal crash - FSceneRenderer::RenderDistortion()

UE - Graphics Features - Aug 29, 2017

This is a somewhat common Mac crash occurring since 4.15 and into 4.17.1. Users have not provided any descriptions of their actions when the crash occurred. This specific callstack was previously ...

Crash in Blueprint when clicking on Component variable name that remains after Component was deleted

UE - Gameplay - Blueprint - Jul 25, 2017

This is a common crash in 4.16 and trending in the 4.17 previews. It can be reproduced by clicking on the name of a variable that remains listed in a Blueprint after the associated component has al ...