Crash with Assertion failed shortly after launching packaged First Person CPP project on Oculus Mobile - Referencing SparseArray.h:86/87

Virtual Reality - Apr 30, 2019

The following assertion throws after the project crashes when playing on the device: Assertion failed: Index < GetMaxIndex() [File:D:/P4Workspaces/Switch_3/Engine/Source/Runtime/Core/Public/Contai ...

FAnimInstanceProxy::LODLevel isn't initialized, causing UB in PreUpdate

Anim - Apr 29, 2019

FAnimInstanceProxy::LODLevel isn't initialized before it is used in PreUpdate, causing UB on the first call. ...

DevelopmentServerLauncher.exe loops whenever the editor is open even if no iOS devices are connected

Platform - Mobile - Apr 29, 2019

A user has reported that DeploymentServerLauncher.exe will continue to poll for devices even if no iOS devices are connected. I am under the impression that this is so that Windows can poll for iOS ...

STEAM: Modifying the connection slot numbers can lead to a condition where the lobby is no longer joinable

Online - OSS - Steam - Apr 25, 2019

Session data no longer updates when the backend tells us our session is full which then limits the ability to modify the session size on the fly. Because of this, joinability will be set on the sess ...

Easing Curve Handles are intractable on tracks even if they are not visible

Sequencer - Apr 25, 2019

Easing curve handles are interactable on tracks that do not support them. ...

Crash when deleting mesh instances of a HISM component

Tools - Foliage - Apr 24, 2019

When trying to delete an existing (and saved) mesh instance from a Hierarchical Instanced Static Mesh component the Editor crashes due to a failed assertion, however clearing all instances does not ...

Editor crashes when adding a parameter to a material when using Forward Shading and DX12

Rendering - Apr 24, 2019

Setting the default RHI for Windows to DX12 and enabling Forward Shading results in a crash when adding a texture sample parameter to a material. Found in 4.22 CL# 5660361 and 4.23 CL# 6074473 Wor ...

Support latest version of OpenVR for SteamVR

Virtual Reality - Apr 23, 2019

Increase the version of OpenVR we support to the latest version ...