Calling RegisterComponent in the PreInitializeComponents of an Actor will cause child components of its components to not be initialized

UE - Gameplay - Dec 15, 2017

Calling RegisterComponent in the PreInitializeComponents of an Actor will cause child components of its components to be ignored because the Actor is still being initialized. My understanding is tha ...

FApp::IsUnattended checks are missing when a message box is displayed because serialization has gone out of bounds

UE - Foundation - Core - Jan 2, 2018

In cases where serialization goes out of bounds, there is no check to see if the app is running in unattended mode before the message box is displayed. If the app is running unattended, such as on a ...

Data loss when FPlane is implicitly converted to FVector4

UE - Foundation - Core - Jan 3, 2018

The FSceneView::Deproject function calls FMatrix::TransformVector4 and passes an FPlane value. TransformVector4 takes in an FVector4 parameter, so the value being passed is implicitly converted to F ...

Cannot uncheck "Support armv7" setting in the project settings without first enabling "Support armv64"

UE - Platform - Mobile - Jan 4, 2018

The editor silently ignores in put from the user when trying to uncheck the setting "Support armv7" (when this setting is the only one checked between the options of support armv7 and support armv64 ...

AIPerception components inherited from a native parent class do not expose the DetectionByAffiliation field on senses for editing in the Blueprint editor's Details view.

UE - Gameplay - Blueprint - Dec 15, 2017

The "Detection by Affiliation" field cannot be edited in the Blueprint editor's Details view for an inherited AIPerception component in the "Senses Config" array if the AIPerception component is inh ...

Client move combining triggers repeated overlap start/end events on network client

UE - Gameplay - Player Movement - Jan 2, 2018

This is caused by client move combining warping the player back and replaying the move. Workaround is to set "p.NetEnableMoveCombining 0" but that is bad for network bandwidth. We should probably ...

External textures don't render correctly on BSP

Media Framework - Jan 8, 2018

The result can be somewhat improved by setting different scale values in the surface properties, but it's always more or less broken. ...

Pixelated texture has material artifacts occur when two corners are covered

UE - Graphics Features - Feb 2, 2018

There is an issue with ramp-like textures where multiple corners are covered when you apply the mesh with the alpha channel on, there is a strange border that appears around the whole plane mesh tha ...

[Feature Request] Add material node or function to easily support AR passthrough camera

UE - Platform - XR - Feb 5, 2018

See the UDN link. This is currently possible with some material work, but should be made more robust to automatically look up the passtrough texture resolution and to deal with apps deployed in por ...

AutoCreateRefTerm does not provide a way to specify that a TArray property within a struct should have a default value created for it if none is provided

UE - Gameplay - Feb 9, 2018

The current implementation of AutoCreateRefTerm does not allow for a default value to be automatically created for a TArray contained within a struct that is passed into a function as a parameter. I ...