Creating a new user defined struct with the same name as a native declared struct crashes the editor (e.g., "MyStruct" which already exists for some reason)

UE - Gameplay - Blueprint Editor - Mar 31, 2020

Error message:Fatal error: [File:G:/UE4/Projekte/4.25/Engine/Source/Runtime/CoreUObject/Private/UObject/Class.cpp] [Line: 2503] Couldn't bind to native struct STRUCT_REINST_MyStruct_0. Headers nee ...

BP - Nativizing a UMG widget hierarchy in which a child widget of another widget BP type has the "Is Variable" box unchecked will result in a crash at runtime.

UE - Gameplay - Blueprint - Jan 28, 2020

When the "Is Variable" box is unchecked for a BP-typed child widget, a variable will not be created at Blueprint compile time to reference the child widget in the nativized widget BP class. This bre ...

Bugg 60426: "SEGV_MAPERR at 0x3"

UE - Foundation - Core - Jul 21, 2015

Crash Report: [Link Removed] Multiple Mac users reporting crash at 35% Start up *See crash reporter Bugg 60426 ...

Assertion Failure: Cascade Particle !bPostTickComponentUpdate in same tick group as Cascade Particle system submission.

UE - Niagara - Apr 18, 2019

Attached Project:  [Link Removed] Since Upgrading project to 4.22, Licensee has been experiencing an Assertion crash in their built game. "I'm not exactly sure why it crashes. It's a very specific ...

BP - Nativized build will crash at runtime if a non-nativized child that inherits from a nativized parent containing a ChildActorComponent sets the CAC class to a non-nativized child of a nativized BP class.

UE - Gameplay - Blueprint - Jan 26, 2020

Current workaround: Add a dummy variable to either BP_Owner_Child or BP_CAC_Child to force one of the two to be nativized. ...

Linux: UE_ENGINE_DIRECTORY not being set by UBT

UE - Platform - Linux - Mar 27, 2018

UBT is not passing UE_ENGINE_DIRECTORY to GForeignEngineDir because in UEBuildTarget.cs IsCurrentPlatform only checks for Windows and Mac. Because GForeignEngineDir is not set, config files and oth ...

[CrashReport] UE4Editor_Engine!FAnimNotifyEvent::IsBranchingPoint() [animtypes.cpp:86]

OLD - Anim - Aug 29, 2017

This is a common crash occurring in the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 72 float FAnimNotifyEvent::GetDurati ...

[CrashReport] UE4Editor_Engine!UHierarchicalInstancedStaticMeshComponent::BuildTreeIfOutdated

UE - World Creation - Worldbuilding Tools - Foliage - Jun 8, 2017

This is a common crash occurring in the 4.16 release. It seems to be related to applying a material to a mesh that is being used in Foliage. Crash Reports are spread out among many different Crash ...

[CrashReport] AppleIntelHD5000GraphicsMTLDriver!SamplerStage::bindSamplerToTexture()

UE - Graphics Features - Nov 2, 2017

This is a trending Mac/Metal crash coming out of 4.18. Users have not provided any descriptions of their actions when the crash occurred. Callstack from Log[2017.10.30-21.59.52:157][767]LogSlate: T ...

[CrashReport] UE4Editor_CoreUObject!FLinkerSave::FLinkerSave() [linkersave.cpp:31]

UE - Foundation - Core - Aug 22, 2017

This is a longstanding and common crash that has occurred since at least the 4.11 release. The error appears to occur while trying to access a .tmp file. User DescriptionsI left unreal unattended ...