When collision tracing a StaticMesh with ComplexCollision, trace penetration occurs

UE - Simulation - Physics - Sep 13, 2017

In the attached project, collision tracing is performed for StaticMesh of SimpleCollision and StaticMesh of ComplexCollision at the level. Trace is done from sphere trace from BP. At this time, trac ...

SceneCaptureComponent2D Component does not allow the use of the Hidden Actor array

Tools - Sep 12, 2017

SceneCaptureComponent2D Component does not allow the use of the Hidden Actor array and the Show only actors array does not take in elements. This issue does not occur in 4.16.3 because the feature w ...

Unable to localize the Application menu on MacOS

UE - Editor - UI Systems - Localization - Sep 8, 2017

It has been reported that the Application menu on MacOS cannot be localized using the Engine. It appears that when the Engine creates this menu, it does not use the localization system in the Engine ...

[CrashReport] Ran out of memory - FFixedUObjectArray::PreAllocate()

UE - Foundation - Core - UObject - Sep 7, 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 165 if (GWarn) 166 { ...

Progress bar causes black screen on iOS

UE - Platform - Mobile - Sep 1, 2017

When using a progress bar that is partly filled the screen on an iOS device will be blacked out except for the screen space containing the filled part of the progress bar This did not occur in stan ...

Lightmass export can fail with duplicated static mesh assets

UE - Graphics Features - Aug 30, 2017

See https://answers.unrealengine.com/questions/853450/417-lighting-build-fails.html ...

[CrashReport] UE4Editor_Landscape!ULandscapeInfo::UpdateLayerInfoMap() [landscape.cpp:1459]

UE - LD & Modeling - Terrain - Landscape - Aug 22, 2017

This is an intermittent crash occurring in the 4.17 release. Users have not provided any descriptions of their actions when the crashes occur. Source Context 1444 LayerSettings.bVa ...

[CrashReport] UE4Editor_SequenceRecorder!FAnimationRecorder::Record() [animationrecorder.cpp:616]

UE - Anim - Sequencer - Aug 22, 2017

According to CrashReporter there is both an Ensure and a Crash that occur with this callstack. The error message for the Ensure is Ensure condition failed: UIDList == AnimationCurves.UIDList [File:D ...

[CrashReport] UObjectBaseUtility::IsA | UObjectProperty::SerializeItem

UE - Gameplay - Aug 15, 2017

This is a trending crash coming out of the 4.17 release. Update: also occurring in 4.18 User DescriptionsCompiled after Refreshing Blueprint node after changine its namePressed compile after creat ...

Nativized build will crash on load if a member variable in a nativized parent Blueprint class references a non-nativized child Blueprint class asset.

UE - Gameplay - Blueprint - Aug 9, 2017

This occurs because there exists a circular reference between the nativized parent BP and the non-nativized child BP asset (which is a data-only Blueprint in this case). Current suggested workaroun ...