Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash

UE - Gameplay - Blueprint - Jun 28, 2015

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash. This does not occur in the Even ...

GAS: Mixed replication mode and error in MinimalReplicationTags code

UE - Gameplay - Gameplay Ability System - Apr 6, 2022

We're on 4.25.4. We recently turned on mixed mode replication for GAS, which seems to work fine and reduce bandwidth as expected. However one of our unit tests started failing with this error messag ...

Subobject delimiter replacement in ResolveName can cause previously valid strings to exceed NAME_SIZE

UE - CoreTech - UObject - Nov 8, 2021

ResolveName will replace the subobject delimiter (colon) with two periods. This increases the length of the string, and can cause asserts due to the string exceeding NAME_SIZE even when the name was ...

Client crashes after second seamless travel when a blueprint manually placed in the world spawns a replicated actor

UE - Networking - Sep 19, 2019

When a user loads into a level that spawns replicated actors using manually placed blueprints twice using ServerTravel with Seamless Travel enabled it will crash. It looks like the engine can't find ...

[CrashReport] UE4Editor_CoreUObject!UObjectBaseUtility::GetOutermost() [uobjectbaseutility.cpp:118]

UE - LD & Modeling - Terrain - Landscape - Jun 6, 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 ...

Crash on iOS9 when using Apple's CFNetwork library

UE - Platform - Mobile - Dec 6, 2016

Many clients have hit a crash due to an Apple library using operator delete on a memory block that was not allocated with operator new. This happens with the following callstack on iOS9 in UE4.13 o ...

[CrashReport] UE4Editor_MeshPaint!FMeshPaintGeometryAdapterForStaticMeshes::OnRemoved() [meshpaintstaticmeshadapter.cpp:222]

Tools - Nov 21, 2017

This is an infrequent crash in the 4.18 release. Users have not provided any description of their actions when the crash occurred. Source Context 210 if (StaticMeshReferencers) 211 ...

[CrashReport] UE4Editor_UnrealEd!TSet<FEditorUndoClient * __ptr64,DefaultKeyFuncs<FEditorUndoClient * __ptr64,0>,FDefaultSetAllocator>::Remove() [set.h:685]

UE - Anim - Sequencer - Aug 15, 2017

This is a trending crash coming out of the 4.17.0 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 675 /** 676 * Remov ...

If using SetAlignmentInViewport in Construct, the value with it is ignored

UE - Editor - UI Systems - UMG - Jan 27, 2023

If SetAlignmentInViewport is called in the UMG Construct, it is ignored internally. This is due to a change that came in 5.1, so it worked fine in 5.0. First, when the Set Alignment in Viewport nod ...

[CrashReport] UE4Editor_Sequencer!TBaseMulticastDelegate<void>::RemoveDelegateInstance() [delegatesignatureimpl.inl:964]

UE - Anim - Sequencer - Oct 5, 2017

This is a slightly common crash coming out of the 4.17.2 hotfix. Users have not provided any descriptions of their actions when the crash occurred. Source Context 951 /** 952 * ...