[AI] SmartObject with Precondition in a persistent collection crashes editor when exiting PIE

UE - AI - SmartObject - Sep 26, 2023

Adding the Precondition to the SmartObject caused an assertion when it was part of a persistent collection. The precondition needs to be able to pass its Activate method to cause the assert. This b ...

Collision between physicalized actors and instanced static meshes produce warnings.

UE - Simulation - Physics - Sep 25, 2023

Collision between an instanced static mesh and a physics simulating actor (with "simulation generates hits events" enabled) results in the following warning: LogChaos: Warning: Collision handler en ...

Paper2D crashes on flipbooks with dynamic materials

UE - Gameplay - Paper2D - Sep 22, 2023

Having flipbooks with dynamic materials and then playing/stopping multiple times crashes the editor. ...

[IFC] A part is not imported

UE - Editor - Content Pipeline - CAD - Sep 14, 2023

Download files from "p012 - Missing Parts/Roof" [Link Removed] Import "SteelRoofOnly.ifc" with datasmith, Nothing is imported. Expected: [Image Removed] "Roof.ifc": Expected: [Image Remove ...

TSR & WPO - Distortion around mesh edges

UE - Graphics Features - Sep 8, 2023

The background around a mesh moving via WPO is distorted. Mesh is correctly outputting velocities. ...

Hardware Accelerated Video Decoding with DirectX 11 causes videos to render black when loaded in a Media Player

UE - Media Framework - Sep 7, 2023

This is not a regression. Tested in //UE5/Release-5.2 CL26001984. Hardware Accelerated Video Decoding requires DirectX 11, but it appears the combination causes media players to only render a black ...

UConsole HistoryBuffer no longer writing to disk in packaged builds

UE - CoreTech - Sep 7, 2023

We started running into issues with the console history not saving after upgrading to 5.2.1. The console history (as in the commands last input into the in-game console) is no longer being saved bet ...

WorldPartitionHLODsBuilder keeps generated HLOD meshes and causes run out of memory

UE - World Creation - Worldbuilding Tools - HLOD - Aug 30, 2023

Animation Montage Section Frame snaps montage segments to beginning of timeline

UE - Anim - Runtime - Aug 23, 2023

Moving a Montage Segment in an Anim Montage via section frame causes the Montage Segment to snap back to the beginning of the timeline. ...

Ensure occurs while duplicating world partitioned level by WorldPartitionRenameDuplicateBuilder commandlet

UE - World Creation - Worldbuilding Tools - World Partition - Aug 21, 2023

The level seems to have been successfully copied. ...