Viewport Gets HMD Control Not Working with Vive

UE - Platform - XR - May 5, 2016

When using the Viewport Gets HMD Control option in the Editor Preferences, the Vive does not seem to be able to control the viewport camera, which is what would be expected. ...

OnClicked event of UMG button fires once in twice if virtual joystick is receiving input.

UE - Editor - UI Systems - Oct 14, 2015

OnClicked event of UMG button fires once in twice if virtual joystick is receiving input. Both Andorid and iOS devices are affected. This issue is found with 4.9 update. under 4.8 are fine. ...

Object set to simulate via a LevelBp will not be affected by a radial force component

UE - Simulation - Physics - Jun 7, 2017

If the objects are set to simulate physics via the details panel it works fine If the objects are set to simulate physics via a level BP the radial force doesn't work Attached video shows you how to ...

Parent Construction Script executes on child when disconnected

UE - Gameplay - Blueprint - Apr 23, 2018

If you create an Actor with Construction Script logic and create a child based on that Actor the Parent Construction Script is being executed even after disconnecting the node. ...

Light Propagation Volumes Not Affected by Emissive Area Light

UE - Graphics Features - Aug 1, 2018

The light propagation volume is not affected by a material with emissive area light enabled. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, 4.21 CL# 4246589 ...

Particle Sprites Location jumps when Engine delta time stutters

UE - Graphics Features - Feb 11, 2015

Particle Sprites will jump forward in level when engine delta time stutters due to a instant pushed rendering queue. [Link Removed] ...

Child BPs created from Parent BPs that include nodes attached to the Event BeginPlay, Event ActorBeginOverlap, or Event Tick nodes include a Parent call in the Event Graph by default

UE - Gameplay - Blueprint - Mar 7, 2015

Child BPs created from Parent BPs that include nodes attached to the Event BeginPlay, Event ActorBeginOverlap, or Event Tick nodes include a Parent call in the Event Graph by default. This is incons ...

Camera resets position to origin of parent on the device for Gear VR

UE - Platform - XR - Mar 31, 2016

If the user attached the camera to the capsule of a character, the camera does not appear in the same place as it would when testing in PIE. It instead appears to default to the origin of the parent ...

Static Bool Parameters not Visible on Material Instances by Default when passed through a Quality Switch Node

UE - Graphics Features - May 4, 2016

When feeding a 'Static Bool Parameter' through a 'Quality Switch' node within the material editor, the material instance for said parameter does not appear until the 'Params' button is enabled. If ...

User can click through Notifications

UE - Editor - UI Systems - Slate - Oct 27, 2015

BRANCH: //depot/UE4-Releases/4.10, but also current Main DESCRIPTION: When there is a notification up, such as launch on, the user can interact with the editor through it. *User shows video of the ...