Unreal Engine Issues

Long thin spinning objects take too long to stop spinning

See the SpinningObjectStability test map in the Physics Sandbox. [Link Removed] It's not clear if this is a bug or a side effect of some of our solver shortcuts (e.g., omission of the precession te ...

Foliage breaking when used Sublevels into a Persistent Level

Misalignment between meshes used in landscape spline segments

When using a landscape spline with multiple segments, there can be misalignment between spline segments when the tangent length of segments are too short, causing visual seams between meshes that sh ...

Each adding a static mesh not containing any collision data keeps increasing PhysX memory

If the static mesh has UseSimpleCollisionAsComplex and does not have any SimpleCollision shapes, The physics actor will be destroyed immediately in FInitBodiesHelperBase::CreateShapesAndActors, but ...

[Soundfield Submix] - Output is silent when routing sound to Unreal Ambisonics and then to Resonance

According to the official docs https://docs.unrealengine.com/4.27/en-US/WorkingWithAudio/Nativesoundfield/ an ambisonic submix can be rendered to Resonance or Oculus; however when doing so, while th ...

Allow Cinematic Control is reset to true when restarting the editor

When restarting the editor the viewport will have its Allow Cinematic Control flag reset to true. ...

Deprecating a non-const blueprint interface function replaces the implementation of the event with an empty custom event

This behaviour is only observed when implementing the function as a custom event from a blueprint interface. This behaviour is not observed in actors where the blueprint interface function is implem ...

Gameplay Tags set as Default in Local Variables do not show as references in Reference Viewer

Normal variables with gameplay tag defaults will show up in the reference viewer.Other reference types used as a local variable default value will show up in the reference viewer correctly. ...

Sampler Source: From Texture Asset with Streamed Virtual Texture

It appears that Texture Samplers for Virtual Textures do not respect the Tiling Method from the Virtual Texture Asset when the "Sampler Source" is set to "from texture asset". ...

Affect Indirect Lighting While Hidden can affect the environment after data layer unload in editor

After setting Affects Indirect Lighting While Hidden but before saving the level, the emissive contribution persistents through datalayer visibility toggles. This does not appear to occur in PIE, on ...