Unreal Engine Issues

Crash While Compiling Blueprint in FBlueprintEditorUtils::RefreshExternalBlueprintDependencyNodes()

Having an actor blueprint (A) that contains an array variable of references to another actor (B) that is connected to a Length node and a Vector array that is connected to a ForEachLoop causes bluep ...

Behavior of configuration file hierarchy is different from document

Licensee reported behavior of configuration file hierarchy is different form document here (https://docs.unrealengine.com/latest/INT/Programming/Basics/ConfigurationFiles/index.html) Doc: 1. Engine ...

Insufficient precision of Decode71 function

Encode71 and Decode71 in DeferredShadingCommon.ush are functions that convert 8-bit values ​​to 7-bit values ​​and mask values, and licensees have reported that the accuracy is insufficient when usi ...

WP HLOD Crash on Small Cell Sizes

iOS/tvOS fails to build from source editor built with Xcode 9.3, macro expansion producing 'defined' has undefined behavior

Trying to launch on or package for TVOS or iOS from a source build of Mac or Windows will fail with errors:[2018.04.02-16.35.08:522][634]LogPlayLevel: In file included from /Volumes/Storage/GitHub ...

CapsuleComponent Shape sometimes reverts to previous value after entering a new value

If you manually type in the value for Capsule Half Height, it will sometimes revert back to it's previous value upon hitting Enter. The CapsuleComponent's shape in the Blueprint's Viewport adjust to ...

[CrashReport] UE4Editor_CoreUObject!StaticAllocateObject() [uobjectglobals.cpp:2153]

Really close to the repro steps for [Link Removed] Same repro steps produced the following Buggs along with this one: [Link Removed] [Link Removed] Error message: Fatal error: [Link Removed] [Lin ...

Draw debug depth priority oddities

Came across a few oddities with draw debug. DrawDebugSolidBox ignores the DepthPriority parameter and appears to always draw in World. In the screenshot the sphere is drawn on top of the mesh, the ...

When using object lit by the Indirect Lighting Cache sometimes the cache will not load correctly for movable objects when a level is streamed that contains a landscape

When setting up a scene with a persistent level and any sublevel that contains a landscape that is loaded via load stream level node in the level BP can cause the ILC to not be correctly assigned fo ...

Blueprint CDO contains removed component from parent class

Blueprint CDO contains removed component from parent class. From the AnswerHub post: "It appears that if a component is removed from the C++ class, the CDOs for all of the blueprints remain unchang ...