Precomputed Visibility incorrectly Culling Objects in Scene when Opening different Level

UE - Graphics Features - Jun 28, 2017

Objects in a scene are randomly culled when building a level with Precomputed Visibility enabled, and opening another level that has already pre-built precomputed visibility. A couple of things wor ...

Unable to edit default values of TMap struct variable stored in an inherited component from the full blueprint editor

UE - Gameplay - Blueprint Editor - Jun 29, 2017

When you have a struct variable that is part of a TMap which is stored in an inherited component, the struct is not editable in the full blueprint editor. It is editable in the data only blueprint e ...

Huawei P9 Plus screenshots capture black

UE - Platform - Mobile - Jul 18, 2017

OBSERVED RESULT: UE4 captures an all black screen EXPECTED RESULT: Game window should be captured with any debug information that is being printed to the screen WORKAROUND: None IMPACT: Blocks S ...

Sequencer spawned blueprint functions/variables not firing with correct values on begin play

UE - Anim - Sequencer - Dec 11, 2017

Created in relation to https://udn.unrealengine.com/questions/405764/is-it-possible-to-set-sequencer-spawnables-propert.html Issue relates to behavior of the Event BeginPlay and the propagation of ...

Enum can lose value in Child actors with component containing a Map of Structs

UE - Gameplay - Blueprint - Apr 12, 2018

Value in an Enum in a Struct in another Struct assigned to a Map in a Component with the Component used on a Child Pawn Class can be reset upon editor relaunch. User submitted bug. (Unsure what int ...

Foliage Not Updating to Match New Landscape Height After Level Save-As

UE - World Creation - Worldbuilding Tools - Foliage - May 3, 2018

I have observed this behavior in 4.18.3, 4.19.2, and Main (CL 4048405) Per User: I made a landscape, painted some foliage and saved the scene. After I saved the same scene under different name the ...

[CrashReport] UAIBlueprintHelperLibrary::CreateMoveToProxyObject [aiblueprinthelperlibrary.h:26]

UE - Foundation - Core - May 9, 2018

User comments in crash group:I tried making an AI run into my sidescroller characterstarting level with ai 2188 void RemoveAllSwap(const PREDICATE_CLASS& Predicate, bool bAllowShrinking = tru ...

Crash caused by Buffer Overread in TBitArray operator < function

UE - Foundation - Core - Aug 29, 2018

A licensee has reported a crash that is caused by a Buffer Overread in TBitArray's operator < function. While the licensee did not provide reproduction steps, the crash is apparent from looking at t ...

Find and replace reference feature(experimental) crashes after indexing dialog

UE - Gameplay - Blueprint Editor - Jan 30, 2019

FindInBlueprints->CacheAllBlueprints(FSimpleDelegate::CreateSP(this, &SReplaceNodeReferences::OnSubmitSearchQuery, true), EFiBVersion::FIB_VER_VARIABLE_REFERENCE);  This leads to crash. Users can b ...

Smart Nav Links created via Load Level Instance are broken, but Simple Nav Links are fine

UE - AI - May 20, 2019

Maps brought in via Load Level Instance that contain Nav Link Proxys configured to use the Smart Link instead of the Simple Link end up creating a link at the center of the world instead of their ac ...