Apple TV offline saves fix

Platform - Mobile - Jul 31, 2019

Offline save games don't work on Apple TV, (in fact all file operations fail) because Apple has decided that you can't store anything in the NSDocumentDirectory anymore. The fix is to replace occurr ...

Sleep state not replicating properly

Networking - Jul 30, 2019

Objects' sleep states are not being properly replicated to the client. While it cant seem to be reliably triggered, occasionally the client will receive a constant stream of sleep events, until the ...

The socketbuilders do not properly join multicast groups on iOS

Networking - Jul 26, 2019

On iOS, using the code in the UDP socketbuilders causes the sessions tool to not join with iOS devices. Giving the error EADDRNOTAVAIL. If the user falls back to the other code function that uses th ...

FAnimNode_RigidBody::bForceDisableCollisionBetweenConstraintBodies modifies asset collision table

Physics - Jul 24, 2019

The 'Force Disable Collision Between Constraint Bodies' rigid body node option modifies the collision table of the physics asset its used with. It is expected that this option works as an override a ...

First Person Example Project Crash when character movement component is cast in viewport.

Tools - Jul 23, 2019

Crash is caused by incorrect cast to display ActorComponent in viewport (gizmo used to move it should not be present) ...

UWorld Async Sweep functions missing the FQuat parameter

Physics - Jul 22, 2019

The UWorld Async Sweep functions are missing the FQuat Rot parameter of their sync counterparts and the Sweep, Overlap, and Async Overlap functions are missing param comments for their rotation para ...

SpiralBlur-SceneTexture Does Not Compile If Raytracing Enabled

Rendering - Ray Tracing - Jul 22, 2019

The material function SpiralBlur-SceneTexture, does not compile in DX12 mode. Found in 4.22 CL# 7053642, 4.23 CL# 7321677, 4.24 CL #7474192 ...

Particles can not be displayed once they disappear in ParticleLOD

Rendering - Cascade - Jul 22, 2019

I have attached a project to reproduce. Particles_422.zip[Image Removed] The problem is that if there are multiple emitters It seems to reproduce when all Emitter is Disable. It works well if there ...

A Niagara system will only use one spawn rate curve when it has more than one emitter with different spawn rate curves

Rendering - Niagara - Jul 19, 2019

Systems that have more than one emitter that both have unique spawn rate curves will only used the most recently added emitter's spawn rate curve for all emitters. ...

RestrictedToClasses UCLASS Meta expects space delimiters but documentation shows comma delimiters

Gameplay - Jul 19, 2019

The documentation: https://docs.unrealengine.com/en-US/Programming/UnrealArchitecture/Reference/Metadata/index.html shows the RestrictedToClasses meta syntax as being RestrictedToClasses="Class1, C ...