Crash When Attempting to Add Existing Streaming Levels Already Present in the Levels Window

Tools - Aug 10, 2017

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 ( ...

Crash when attempting to convert a sequencer actor into a BP Class

UE - Anim - Sequencer - Nov 15, 2016

Error message: Assertion failed: IsValid() [Link Removed] [Line: 752] Source Context: 738 return *this; 739 } 740 741 /** 742 * Converts a shared ...

Crash When Curve Editor is on When Animating Button Transform in Widget Blueprint

UE - Editor - UI Systems - Mar 18, 2016

In a Widget Blueprint, after animating a button to transform vertically (possibly other directions) with the Curve Editor active, engine will crash upon creating a second animation. ...

[CrashReport] Crash related to looped Reroute nodes

UE - Gameplay - Blueprint - Jul 14, 2017

This is a common crash affecting users in 4.15 and 4.16. User DescriptionsI connected two reroute nodes together in a circle. And well it brought me here.I connected a reroute node with a reroutnod ...

[CrashReport] UE4Editor_Cascade!FCascadeEdPreviewViewportClient::GetCascade() [cascadepreviewviewportclient.h:72]

UE - Niagara - Jul 14, 2017

This is a common crash affecting users in 4.16. It appears to be a continuation of [Link Removed]. Users have not provided additional information about this crash. Source Context/** Accessors */ ...

Following the 'Working with Modular Characters - Skeletal Mesh Merge Example' results compilation errors

UE - Anim - Feb 10, 2022

This is a Regression. Tested in: //UE5/Release-5.0 CL 18747223 GitHub //UE4/Release-4.27 CL 18319896 Binary The example can't be completed in UE5 as expected presumably because of a change within ...

[CrashReport] UE4Game!FStreamingManagerTexture::FStreamingManagerTexture()

Tools - Jun 6, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. This crash is only occurring in packaged games, not in the editor. The Logs contain the follo ...

Compiling after copy/pasting Event Tick with references into function crashes editor

UE - Gameplay - Blueprint - Aug 29, 2016

When pasting nodes with references to an event tick into a function then compiling the editor will crash. Regression from 4.12.5 Binary CL-3039270 Edit - TravisL: I was able to repro this crash o ...

NVIDIA 5080 GPU Crash when launching City Sample with DX12

UE - Graphics Features - Lumen - Apr 16, 2025

UPDATE This issue no longer reproduces on driver versions 580.88 and higher. City Sample game crashes immediately upon opening with a NVIDIA 5080 with the latest drivers as well as some previous dr ...

Timeline tracks can be given the same name as existing execution inputs, and renaming them and compiling will cause a crash

UE - Gameplay - Blueprint - Jan 13, 2015

Timeline tracks can be given the same name as existing execution inputs, which causes some unusual behavior when dragging off the pin. Renaming them will rename the execution pin instead, and compil ...