Unreal Engine Issues

Actor Not Ticking on First Streaming Level Load When Using Level Streaming Volume

Actor's do not appear to be ticking when a level is first loaded when using a Level Streaming Volume. The Tick event will fire on the second and subsequent attempts. Edit: After further testing, th ...

Significant hitch occurs when invoking ApplySettings on a UGameUserSettings object

Calling the ApplySettings method on a UGameUserSettings object results in a noticeable hitch, with severity proportional to the number of primitive components present in the scene. This hitch stems ...

Changing Asset Manager settings breaks game feature scan directories

The asset manager is used to scan directories on disk for different Primary Assets that can then be loaded on demand. Game feature plugins support the ability to add additional scan directories when ...

Attaching New Camera Actor to Spring Arm Component does not set the Location Correctly

After adding a new Camera Actor Component within Blueprints to an existing Spring Arm Component, the Camera Component adopts the location settings , but does not set its location within the viewport ...

OpenXR Remoting fails to attach actions to remoting session in 4.27

Regression from 4.26 where actions fail to bind when remoting in 4.27 Repro: using the Microsoft OpenXR Extensions plugin here:https://github.com/microsoft/Microsoft-OpenXR-Unreal/tree/main/MsftOpe ...

Instance overlap functions for Foliage Instanced Static Meshes detects instances inconsistently

Instance overlap functions for Foliage Instanced Static Meshes detects instances incorrectly. I was able to see this occur with both the Sphere and Box functions. In addition, I drew out debug sphe ...

AbilityTask_PlayMontage will 'zombie' if Interrupted during BlendOut

User reports: I've noticed a bug with PlayMontageAndWait There are 4 possible triggers when a Montage completes:OnCompletedOnBlendOutOnInterruptedOnCancelled Once OnBlendout has been triggere ...

Certain Niagara particles can disappear after switching to the debug cam

Unable to use OpenXR with non-Oculus Android platforms

From Licensee: In OpenXRHMDModule:473 (UE5.0) or OpenXRHMDModule:497 (UE5.1) the engine is checking if the app is packaged for Oculus Mobile, if it isn't the case the function returns false and the ...

Geometry Collection (GC) fragments are affecting the Navmesh in wrong positions

Geometry Collection (GC) fragments are affecting the Navmesh in wrong positions and the identified cause is wrong indexing. Once a GC breaks, it's fragments, when big enough, are creating islands in ...