Static Mesh approximate size can be inconsistent between Content Browser and Static Mesh Editor

Tools - May 3, 2017

The approximate size for a Static Mesh that is shown in the tooltip from hovering over a Static Mesh in the Content Browser and the approximate size shown in the Static Mesh Editor can be inconsiste ...

NiagaraSystem is compiled every time when first loaded in the editor

UE - Niagara - May 20, 2022

If you are using a large amount of Niagara, you will experience excessive load times in PIE even if nothing is changed. The following code change seems to be effective as an interim response. void ...

Nativizing a blueprint interface using TMap/TSet causes Fatal error in UHT

UE - Gameplay - Blueprint Compiler - Sep 9, 2020

FPropertyBase constructor does not handle a TMap/TSet property. Following workaround can avoid this error. explicit FPropertyBase(FProperty* Property) : PropertyExportFlags(PROPEXPORT_Public) ...

Integrity of AnimSyncMarkers compromised while playing AnimMontage with root motion in server side

UE - Anim - Gameplay - Jan 11, 2023

Reference UDN as it explains well the cause of the issue. ...

Crash Occurs When Creating a Blueprint From a Nav Link Proxy

UE - Gameplay - Blueprint - Sep 27, 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: Access violation - code c0000005 ( ...

[CrashReport] UE4Editor_UnrealEd!FTransaction::FObjectRecord::FPersistentObjectRef::operator->() [transactor.h:108]

Tools - Oct 28, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: Obj [Link Removed] [Line: 107] Source Context: 93 ...

Dangling pointer + mem corruption related to OwnerLastRenderTimePtr

UE - World Creation - Worldbuilding Tools - Mar 16, 2026

We've been seeing asserts and crashes related to OwnerLastRenderTimePtr. We've traced this to the mentioned pointer ending up dangling after using UActorComponent::Rename() on primitive components t ...

Graphical Artifacts in Editor with Macs using Certain AMD Graphics Cards

UE - Graphics Features - Sep 17, 2015

Users are reporting black and splotchy like graphical issues in their projects when working on a Mac and using an AMD graphics card. The user in the link provided mentions, "that UE 4.8.3 is withou ...

[CrashReport] UE4Editor_Engine!USkeleton::GetSmartNameContainer() [skeleton.cpp:1315]

OLD - Anim - Oct 5, 2016

Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 1300 FSmartNameMapping* Mapping = SmartNames.GetContainerInternal(ContainerName); 1301 ...

Map load errors after adding C++ Vehicle or VehicleAdvanced pack to a project

UE - Gameplay - Jan 14, 2017

Load errors:Warning CreateExport: Failed to load Outer for resource 'MovementComp': TP_VehiclePawn /Game/VehicleCPP/Maps/VehicleExampleMap.VehicleExampleMap:PersistentLevel.TP_VehiclePawn_9 Warning ...