Ongoing D3D 'HUNG' crash in FD3D11DynamicRHI::GetQueryData

UE - Graphics Features - Jan 18, 2017

This is a new ticket for the D3D 'HUNG' crash originally reported in [Link Removed]. Some fixes were introduced in 4.14.2 that decreased the occurrences of this crash, but other cases are still ongo ...

[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 ...

[CrashReport] UE4Editor_UnrealEd!FEdGraphUtilities::PostProcessPastedNodes() [edgraphutilities.cpp:138]

UE - Gameplay - Blueprint - Jan 24, 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 removing and re-adding instances to an InstancedStaticMeshComponent with PerInstanceCustomData.

UE - World Creation - Worldbuilding Tools - Jan 22, 2026

When using an InstancedStaticMeshComponent with PerInstanceCustomData, the number of float elements in the "Custom Data" array should always be equal to NumCustomDataFloats multiplied by the number ...

[Enhanced Input] Chord trigger fails when its referenced action lives in a lower-priority IMC

UE - Gameplay - Input - May 18, 2026

Summary A UInputTriggerChordAction does not fire when the action it references (the "chording action") is mapped in a different Input Mapping Context with a lower priority than the IMC containing the ...

PATH not passed to NMake script when building Android from Visual Studio

UE - Core - Cpp Tools - UnrealBuildTool - Jan 25, 2023

After upgrading from UE5.0.3 to UE5.1, we started seeing this error when trying to build Android Development from Visual Studio (VS2022 17.2.1): Running UnrealBuildTool: dotnet "..\..\Engine\Binari ...

AdditionalPluginDirectories/RemappedPlugins doesn't work for packaged/zenstore build when plugin directory is relative and outside of project directory

UE - Core - Systems - Mar 14, 2024

Originated from UDN post:https://udn.unrealengine.com/s/question/0D5QP000007QWuz0AG/additionalplugindirectories-outside-of-project-visual-studio-and-zenstore QUOTE: TLDR: Use of 'escape' paths in U ...

Null FPhysicsActorHandle dereference in FBodyInstance::InitDynamicProperties_AssumesLocked when CreateShapes_AssumesLocked fails during async body init

UE - Runtime - Simulation - Aug 2, 2026

Summary When CreateShapes_AssumesLocked fails during async body creation, the failed FBodyInstance is left in Bodies[] with a released actor handle. InitDynamicProperties_AssumesLocked is then called ...

Display 1.2 bouncing ball has a typo in the Math Hall of ContentExamples

Docs - Samples - Sep 19, 2016

Just a typo that needs to be fixed. ...

In Niagara's "CalculateParticleRadius", StaticSwitch Input is connected

UE - Niagara - Jan 24, 2020

This may not compile properly. Should be fixed. ...