Reference Viewer doesn't show references to Primary Asset IDs

UE - Editor - Applied Usability - May 13, 2025

Context Reference Viewer can be used to view references between assets. There is a setting 'Show Management References' whose tooltip implies that references via PrimaryAssetID should be findable t ...

Updating niagara with Advance Simlation during game pause causes memory leak

UE - Niagara - May 12, 2025

When updating the niagara component in AdvanceSimulation with a tick, the memory of the Niagara tag keeps increasing between pause and resume.  ...

Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering

UE - Simulation - Physics - Destruction - May 10, 2025

Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering. Once the Remove-On-Break Cluster Crumbling effect is activated, there is a small delay between the disappearance of th ...

Meta Quest - Visual Artifacting in right eye with Lumen enabled and effects quality set to High

TM - VR - May 9, 2025

Reported in SF [Link Removed] On Meta Quest headsets, when Lumen is enabled for VR, setting the Effects Quality to High can cause visual artifacts to appear in reflections in the right eye of the h ...

PIE Seamless Travel with a standalone level instance causes assert in UWorldPartition::BeginDestroy

UE - World Creation - Worldbuilding Tools - Level Instances - May 8, 2025

This check is hit on the server instance while it is performing garbage collection during the seamless travel. During this garbage collection, it will determine that the UWorldPartition object belon ...

Unreal Editor Submenus Disappear on Mouse Hover on Linux during Remote Session

UE - Editor - Applied Usability - May 8, 2025

Sub-menus disappear when using Linux in a remote session in launcher build of UE Release 5.5.4. ...

Mover character flickers downward while crouched and moving every so often

UE - Gameplay - Player Movement - Mover - May 8, 2025

Repro Rate 5/5 Packaged onWindows - 10 - Enterprise - L3864 Processor: AMD Ryzen Threadripper PRO 3975WX 32-Cores 3.50 GHz RAM: 128 GB GPU: NVIDIA GeForce RTX 3080 GPU Driver Version: 572.83 ...

Actor Channel failure occurs when quickly unloading and loading a streaming level

UE - Networking - May 8, 2025

With high enough latency, quickly unloading an reloading a streaming level with a replicated actor on the server can cause the actor channel on the client to fail to find this actor: UActorChannel:: ...

SKP Import - Applied texture maps from previous Twinmotion versions are lost after reimport in TM 2025.1.1

TM - Interoperability - May 8, 2025

Reported in SF [Link Removed] For SKP imports that were added to a file in a previous version of Twinmotion, when the .tm file is concerted to and opened in TM 2025.1.1, if the SKP model is re-impo ...

When very far out from the map origin, large static mesh is not streaming in until player is close in world partition even though it's within loading range.

UE - World Creation - Worldbuilding Tools - World Partition - May 7, 2025

Context World Partition has a distance-based level streaming system that provides a complete solution for large world management. Problem The problem is that when the player and large static mesh a ...