Sequences with a playback end on a subframe will not fire events that lie between the last whole frame and playback end

UE - Anim - Sequencer - Nov 25, 2019

Sequences that end on a subframe will not evaluate past the last whole frame, preventing events from triggering that should. ...

Replay rollback state doesn't recreate per-instance components

UE - Networking - Nov 26, 2019

Actor rollback state saved and restored by the replay system for placed actors in the level does not take into consideration per-instance replicated components, so they won't be recreated when the a ...

Renaming a Blueprint variable loses override in grandchild Blueprint

UE - Gameplay - Blueprint Compiler - Nov 26, 2019

Renaming a Blueprint variable loses override in grandchild Blueprint. Modifying and saving the BP_Child fixes the issue with BP_Grandchild losing overrides.  ...

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

UE - 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 ...

Wake/Sleep events are not properly handled with Welding

UE - Simulation - Physics - Nov 25, 2019

Wake/Sleep events are not generated for components set to generate wake events after having a component not set to generate wake events welded to them. Wake/Sleep events are also not dispatched for ...

Game window will not regain focus when startup movie is playing

Media Framework - Nov 23, 2019

The game window cannot be focused while startup movies are playing.  ...

When using a SpeedTree asset, a Zero Triangles warning appears

Tools - Nov 25, 2019

When exporting from SpeedTree with LODs + billboard, It seems that a warning is issued by including a material used only by Billboard. Is there a way to deal with it? ...

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

UE - Foundation - 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. ...

Crash When Playing After Setting Size of Retainer Box to Minus

UE - Editor - UI Systems - Nov 25, 2019

Retainer box has minus size occurs crash when PIE, standalone and package.  Probably, we should add any codes for adjust size to 0 or more to  URetainerBox::SynchronizeProperties(). ...