CreateProxyObjectForPlayMontage does not report if cannot play

Anim - Nov 15, 2018

UPlayMontageCallbackProxy::CreateProxyObjectForPlayMontage creates a proxy object and immediately calls PlayMontage. If the montage fails to play (no mesh component, no animinstance, Montage_Play it ...

GetUniqueBuildID should use GetLocalNetworkVersion for default value

Automation - Nov 13, 2018

See https://udn.unrealengine.com/questions/466694/index.html GetUniqueBuildID() was changed in 4.20 so the value returned by default was the same as the network version. However FNetworkVersion::Ge ...

The Mirror option in the Physics Asset editor is not accurate

Physics - Nov 13, 2018

The Mirror option in the Physics Asset editor is not accurate at mirroring the bodies. The position and rotation is always skewed. Regression? No This occurs in 4.20 ...

Rect Light Source Creates Black Artifacts When Overlapping a Mesh While Light Shaft Bloom Is Enabled

Rendering - Nov 9, 2018

A black line will appear If a Rect Light is overlapping a mesh while a Directional Light has light shaft bloom enabled. This line will originate from where the edge of the source is overlapping the ...

Delay when attempting to input Korean characters using an IME with certain types of text boxes

Tools - Localization - Nov 8, 2018

A user has reported that inputting Korean into certain types of text boxes in the editor using an IME results in delayed input. The user reports that this occurs with SMultiLineEditableTextBox in th ...

ApplyLimits AnimGraph Node has incorrect functionality

Anim - Nov 8, 2018

In AnimNode_ApplyLimits.cpp the inputs for the ConstrainAngularRange function are going to the wrong rotator values. The XYZ of the node's input vec3 is being stored in YPR of the clamped rotator, w ...

Skeletal Mesh Ref Skeleton can be built before Skeleton has finished loading, meaning it misses Virtual Bones

Skeletal Mesh Ref Skeleton can be built before Skeleton has finished loading, meaning it misses Virtual Bones. Need to force Skeleton to finish loading before building ref skeleton (Like animation a ...

Skeletal Mesh rigid body simulation is not being updated with correct bones locations right after Skeletal Mesh is spawned

Physics - Nov 5, 2018

When simulating in Editor, the Skeletal Mesh bone locations are not being passed into simulate if the simulation is being toggled the same frame when the Mesh is being set on a Skeletal Mesh compone ...