Artifact when rendering high-resolution images with Lumen and Movie Render Queue

UE - Graphics Features - Lumen - Apr 26, 2022

Artifacts when using Lumen at 8K equivalent resolution and rendering with MRQ. 8K equivalent, because the same issue occurs when the resolution is set to 4K and the Screen Percentage is set to 200. ...

geometry script AppendSimpleSweptPolygon can crash if called with empty path

UE - Graphics Tools - Modeling Tools - Apr 26, 2022

geometry script "Append Simple Swept Polygon" crashes if called w/ an empty path (but non-empty cross section polygon) ...

Replicated Child Actor in standalone editor instance causes package map errors

UE - Networking - Apr 25, 2022

This only seems to occur if the parent is statically placed, and only when launching the instances as standalone game from the editor. If the actor is dynamically spawned or if the instances are run ...

Child Actor Components are visible in editor but disappears while playing or simulating.

UE - Gameplay - Components - Apr 25, 2022

Child Actor Components are visible in editor but disappear while playing or simulating. On BP_Cube_Row, setting 'Hidden in Game' to true then false during play will make the object appear. Repro Ra ...

Foliage Instance Static Meshes do not affect the Navmesh

UE - AI - Navigation - Apr 25, 2022

Foliage Instance Static Meshes do not affect the Navmesh. I tried changing the Custom Navigable Geometry to 'Yes' & 'Even if Not Collidable' but got the same results. Repro Rate: 4/4 Tested this i ...

Assign node on floats can cause a crash at runtime

UE - Gameplay - Blueprint Compiler - Apr 25, 2022

This is from a UDN and I was not able to reproduce it locally in Release-5.0 or Ue5/Main, creating this issue for tracking.  ...

Release Notes shows Unreal Editor 4.27 notes

Docs - Apr 25, 2022

In the Epic Game Launcher the Release Notes button shows the Unreal Editor 4.27 release notes even if the user only has Unreal Editor 5 installed. ...

Significant Refraction Differences between 4.27 and 5.0

UE - Rendering Architecture - Materials - Apr 25, 2022

Movie Render Queue Renders Black Frames when MultiSample Effects Are Disabled

UE - Anim - Sequencer - MRQ - Apr 25, 2022

Occurs 5/5 times. When 'Disable Multisampling Effect' is enabled, the Render Warm Up is set to 0, and the Custom Playback Range is set to a small value, frames render out fully black. Regression d ...

Crash when unloading World Composition tiles using Landscape

UE - Graphics Tools - Terrain - Landscape - Apr 25, 2022

When unloading a tile of a World Composition map in UE5, a crash occurs when trying to deference a null pointer (World->PersistentLevel->bIsVisible) in FWorldTileModel::FWorldTileModel():// Assign l ...