Stationary directional light per-object shadows not working with origin rebasing

Rendering - Features Teams - Dec 2, 2019

Not 100% clear if this is a bug or expected behaviour, but raising it as it needs looking it. Can't see it as fixed elsewhere. Confirmed broken in 4.24 too. ...

Crash when changing "MaximumTextureSize" in "LeaveExistingMips" state

Tools - Import - Dec 2, 2019

No problem with 4.22.3 ...

Unwanted black boundaries are displayed in a vertical split-screen with 3 players.

Gameplay - Dec 2, 2019

Floating point error from UGameViewportClient::SplitscreenInfo causes this issue. FMath::TruncToInt( 3240 /*ViewportSize*/ * 0.333f/*Ratio in SplitScreenInfo*/ ) = 1079 I suggested a following t ...

Crash to desktop after creating Level Sequence with Widget Blueprint

Tools - Nov 30, 2019

Newly created Level Sequence assets cant be opened when they have been created via Editor Blueprint Widget. They are created successfully through a button click for instance, but when you try to ope ...

Niagara system loses source emitters when moving Engine from 4.22 or earlier to 4.23 or later.

Rendering - Niagara - Nov 29, 2019

The following code causes this behavior.// NiagaraSystem.cpp for (FNiagaraEmitterHandle& EmitterHandle : EmitterHandles) { EmitterHandle.ConditionalPostLoad(NiagaraVer); if (!EmitterHandl ...

Don't display events in blueprint function with profile stats.

Core - UObject - Nov 28, 2019

When look at stats in Unreal Frontend, can see the events that run in the function. It work in 4.21, but it doesn't work in 4.22. ...

None referenced NiagaraEmitters are contained in packaged game

Rendering - Niagara - Nov 28, 2019

[Image Removed] It's just storage waste. Because those assets will be never loaded on runtime. ...

Resetting the RGB values of a Sky Atmosphere's Absorption

Tools - Nov 27, 2019

Resetting the RGB values of the Absorption to a Sky Atmosphere using the 'reset to default' arrow still appears after pressed. Tested in: 4.25 CL#10387577 ...

Start ARCore Session - Session config fails

XR - Nov 27, 2019

ARCore Regression Not seen when updating 4.23 project to 4.24 This did NOT reproduce when updating 4.24 project (Created with Preview 4) to 4.25 MAIN 10406617 ...

It may be possible to send an actor RPC before successful replication of the actor

Networking - Nov 27, 2019

It was reported on UDN that it's possible to receive an RPC for an actor before the actor itself has replicated. The net driver tries to prevent this possibility by calling ReplicateActor in UNetDri ...