Objects without custom delta properties can return false for CanSkipUpdate with net.PushModelSkipUndirtiedReplication enabled

UE - Networking - Jun 5, 2023

This seems to occur after receiving a Nak for certain actors. FObjectReplicator::ReceivedNak will decrement SendingRepState.CustomDeltaChangeIndex even if the object has no custom delta properties. ...

Dormancy validation log warnings when COND_Never property changes

UE - Networking - Jun 2, 2023

FRepLayout::DiffProperties doesn't check if the property's conditions is COND_Never or if the Parent Cmd's flags have the ERepParentFlags::IsLifetime flag (which FRepLayout::InitFromClass doesn't se ...

Path Tracing shadow artifacts

UE - Graphics Features - Path Tracer - May 31, 2023

First picture lit is used [Image Removed] Second picture PT is used, this occurs under certain angles of incidence. [Image Removed] ...

Cannot assign a MediaTexture asset to a Brush -> Image in Widget Blueprint

UE - Virtual Production - IO - Media - May 23, 2023

Can't assign Media Texture assets to the Brush->Image property in Images on Widget Blueprints. This workflow is explicitly mentioned as a step in these docs, so if this is no longer the correct meth ...

Widget defaults not updated when modified on a base widget class via the hierarchy

UE - Editor - UI Systems - UMG - May 3, 2023

A licensee has reported an inconsistency in how modified base widget class defaults are propagated to children. When modified via the UMG Designer Graph's Class Defaults, derived classes will be mar ...

Editor Freezes after the user attempts to set a NewSpriteAtlasGroup to an imported sprite

UE - Editor - Content Pipeline - Apr 19, 2023

By setting an Atlas Group to a newly created sprite, the editor freezes. This feature is most important, even if this issue can only be reproduced by a minority of users. Repro rate: 5/5 Notes:No ...

Stop using power of 2 RTs for landscape edit layers

UE - Graphics Tools - Terrain - Landscape - Apr 4, 2023

Result : all the RTs allocated for edit layers (in global merge mode) will be padded to the next power of 2 for no good reason, which can lead to out-of-VRAM (as reported by [Link Removed]) ...

AssetManager: PrimaryAssets: Allow PrimaryAssetTypesToScan entries to be extended from plugins to add directories

UE - Foundation - Data Pipeline - Cooker - Feb 23, 2023

Game.ini:[/Script/Engine/AssetManagerSettings]:PrimaryAssetTypes is an ini setting to specify which PrimaryAssets should be used by the engine during cook to specify which packages gets cooked and w ...

Overriding Component class does not work properly in grandchild class BP

UE - Gameplay - Blueprint - Feb 22, 2023

If you set ComponentClass override in child class BP and grandchild class BP respectively, it is ignored in grandchild class. This issue is probably related to [Link Removed]. The fix for [Link Rem ...

LOD streaming requests for distance fields are overridden with additional scene captures.

UE - Graphics Features - Feb 12, 2023

The distance field scene is shared between scene renders in a given frame. However, LOD requests are not tracked over the entire frame, but per scene render (e.g. camera or scene capture). Thus, if ...