Procedural Sound Wave Fails to Play when returning 0 bytes in GeneratePCMData callback

UE - Audio - Aug 2, 2016

Returning 0 bytes in GeneratePCMData results in the procedural sound wave not continuing to play audio. Instead of returning 0, we need to return an empty buffer if the procedural sound wave doesn't ...

Race condition in USkeletalMeshComponent::TickCloth due to delayable tick function.

UE - Simulation - Physics - Character - Aug 1, 2016

USkeletalMeshComponent::TickComponent is run in the PrePhysics tick group. This is the only place where the SkeletalMesh is actually checked to be != nullptr to determine whether or not the TickClot ...

Vive reverts to waiting room when loading in streamed level with significant load

UE - Platform - XR - Aug 1, 2016

When using the HTC Vive with any levels that are streamed in that take a moment to load in will show the waiting room for the Vive while loading. This does not happen on the Oculus that I can see. I ...

Cannot control all movie rendering options from CMD

UE - Anim - Sequencer - Aug 1, 2016

I understand that we were not using -benchmark and -dumpframe for some of our internal renders that used these CMD arguments, but that's what our users see. See here for my progress documenting thi ...

Component reference broken in sequencer when component is renamed

UE - Anim - Sequencer - Jul 29, 2016

Component reference broken in sequencer when component is renamed ...

Lighting build isn't saved when using -run=resavepackages and -buildlighting

UE - Foundation - Core - Jul 29, 2016

Lighting build isn't saved when using -run=resavepackages and -buildlighting ...

"Runaway loop detected" warnings on AnimBP with worker threads

OLD - Anim - Jul 29, 2016

The runaway loop detection stuff is designed as per thread singletons (TLS). The worker threads don't properly reset the runaway counters. ...

PhysX Crash In Attached Project During PIE

UE - Simulation - Physics - Jul 29, 2016

The user is experiencing a PhysX crash in their project. They stated that the source files contained in 4.12.5 are different from Nvidia's Github version of 3.3.4, which apparently contains a fix fo ...

Setting show flags on a scenecaptureComponent via blueprint does not work

UE - Graphics Features - Jul 28, 2016

Reported via UDN:https://udn.unrealengine.com/questions/304768/scenecapturecomponent2d-and-shadows.html ...

Packaging with Nativize Blueprint Assets Causes Uninitialized Defaults

UE - Gameplay - Blueprint Runtime - Jul 28, 2016

If you use "Set Array Elem" on a vector array but leave "Item" at the default value of (0,0,0) then you'll end up using a temporary uninitialised vector instead of (0,0,0) when it's nativized. Work ...