[CrashReport] Assertion failed: TaskDataArray.Num() == Exporter->VolumetricLightmapTaskGuids.Num()

Rendering - Oct 2, 2017

This is a trending crash coming out of the 4.18 Previews. Users have not provided any descriptions of their actions when the crash occurred, but at least two of the affected projects are being creat ...

On Released fires when holding down a button when using touch (mouse/finger not moving)

Tools - UMG - Sep 26, 2017

On Released fires when holding down a button when using touch with the mouse or finger. This happens in mobile preview as well as on devices. As a note, if he mouse is moved before the release auto ...

[CrashReport] Assertion failed: !Export.ClassIndex.IsNull() | UPackage::Save()

Core - UObject - Sep 20, 2017

This is a somewhat common crash coming out of the 4.17 release. User Descriptionsclicked Launch->Firefox. This is the same project with in-game video-screens which has been crashing on Launch for W ...

[CrashReport] USpeedTreeImportFactory::FactoryCreateBinary()

Tools - Import - Sep 19, 2017

This is a common and longstanding SpeedTree import crash that has occurred since at least 4.14 for over 100 users. This seems to be the same issue as a previous Jira from 4.10 which was closed wit ...

[CrashReport] UE4Editor_MeshPaintMode!FPaintModePainter::FinishPaintingTexture() [paintmodepainter.cpp:1671]

Tools - Sep 14, 2017

This is a somewhat common crash affecting users in 4.17. Users have not provided any descriptions of their actions when the crash occurred. Source Context 1660 { 1661 FScope ...

[CrashReport] UE4Editor_HotReload!`FHotReloadClassReinstancer::UpdateDefaultProperties'::`2'::FPropertyValueMemoryWriter::operator<<() [hotreloadclassreinstancer.cpp:372]

Core - Hot Reload - Sep 14, 2017

This is a common crash that has occurred for users since at least 4.16. User DescriptionsUsing the PIE i compiled some c++ then quit the PIE before the end of the compilation. Source Context 35 ...

[CrashReport] UE4Editor_Engine!USceneComponent::UpdateComponentToWorldWithParent() [scenecomponent.cpp:492]

Gameplay - Components - Aug 29, 2017

This is a common and longstanding crash that has occurred since at least 4.12 and affected more than 400 users. User DescriptionsWas following the first Blueprint tutorial and dragged the geometry ...

[CrashReport] UE4Editor_Core!FFileHandleWindows::Seek() [windowsplatformfile.cpp:501]

Core - Aug 29, 2017

This is common crash coming out of the 4.17 and 4.18 releases. The callstack is similar to an old unresolved import crash: UE-39135 User Descriptionsrebuilding lightbuilding lighting from a datasmi ...

[CrashReport] UE4Editor_CoreUObject!UObjectBase::IsValidLowLevelFast() [uobjectbase.cpp:294]

Core - Aug 22, 2017

This is a common crash in the 4.16 and 4.17 releases. User DescriptionsWriting a custom component in C++. Hotcompiled it through VS2017. Had the BP editor open with a class derived from that compo ...

[CrashReport] Cooking Commandlet crash - FAsyncWriteWorkerWithSplitExports::DoWork() [savepackage.cpp:563]

Core - Cooker - Aug 21, 2017

This is a regular commandlet crash that has occurred since at least 4.15. Source Context 543 IFileManager::Get().SetTimeStamp(*Filename, FinalTimeStamp); 544 } 545 } 54 ...