Compiling actor components causes editor to crash

UE - Gameplay - Blueprint - Apr 2, 2015

User has reported that his actor components are bugged in his BP_Hero blueprint, stating that the functions aren't being recognized. And when he attempts to compile another blueprint that references ...

Mac Editor crashes when deploying

UE - Audio - Apr 17, 2017

This issue occurs NO MATTER your deployment type. (e.g. PIE, Launch, Package...) This is BLOCKING all deployment from the Mac platform. This is a regression and does not occur on Windows. ...

Potential for race conditions in startup movies to cause crash

Tools - Feb 14, 2019

In startup movies there is a potential for a race condition when getting the size of an FMovieViewport. This has led to crashes for licensees. The shared pointer ...

Crash when null texture parameter is present on a MIC

UE - Rendering Architecture - Materials - Apr 22, 2022

From UDN: [Link Removed] Proposed fix: int32 FHLSLMaterialTranslator::TextureParameter(FName ParameterName, UTexture* InDefaultValue, int32& TextureReferenceIndex, EMaterialSamplerType SamplerType ...

Crash trying to convert skeletal mesh to Nanite

UE - Graphics Features - Nanite - Mar 6, 2025

In SkeletalRenderNanite.cpp / FDynamicSkelMeshObjectDataNanite::UpdateBonesRemovedByLOD, bone indices are of type FBoneIndexType (defined as uint16 from BoneIndices.h), instead of int32. On line 18 ...

Crash after network disconnection/pulling network cable

UE - Networking - Jul 11, 2019

A very unfortunate bug shipped in 4.22 that causes a crash in many cases when a client is disconnected from the network, such as when unplugging the network cable. This will be a cert failure on con ...

[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 ...

Crash when playing a packaged project containing NiagaraAudioSpectrum

UE - Audio - Submixes - May 16, 2022

Assertion thrown when playing a packaged project containing NiagaraAudioSpectrum. ...

[CrashReporter] Crash in FClassExclusionData::IsExcluded() (infinite loop)

UE - Gameplay - 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. Note: This appears to be a Commandlet crash. Erro ...

TextRenderComponents not parallel safe. Can cause crash

UE - Graphics Features - Feb 28, 2017

Licensee has reported intermittent crashes when loading a map that contains Child Actors with Text Render Components. When the child actor blueprint is spawned all of the text render components st ...