Nanite Tessellation Artifacts With Landscapes

UE - Graphics Features - Nanite - Dec 4, 2024

There seems to be an issue with how Nanite tessellation and Landscape interact with two sided landscapes. When the camera's near clipping plane is past the landscape's surface the displacement of th ...

Crash in RHIBreadcrumbs during loading of Bundled PSO Cache if capturing an Insights trace on Win64 Development

UE - Rendering Architecture - RHI - Feb 17, 2025

When compiling a PSO, RHI Breadcrumbs can be fed a bad FRHIBreadcrumbNode, resulting in reading random memory and crashing during the recursive node iteration. This only happens when tracing. The i ...

UGameUserSettings::ValidateSettings fails to wipe GameUserSettings.ini

UE - Framework - Mar 4, 2025

When changing the version in UGameUserSettings, the expected behaviour is that GameUserSettings.ini will be wiped/delete and then regenerated. The actual behaviour is that within the ValidateSetting ...

Some objects are imported with incorrect positions when the "Keep hierarchy" collapse mode is used.

TM - Interoperability - Mar 17, 2025

I could only replicate with the user's sketchup file. Exporting this file as fbx, and importing the fbx in KH doesn't have the issue.[Image Removed] ...

PoseSearch Query is flipped 180 degrees 1 frame after a capsule/actor rotation happens.

UE - Anim - Gameplay - Sep 3, 2025

Using MotionMatching with a PoseSearchSchema with a Trajectory grouping. The query gets rotated to match the capsule/mesh component instead of the offset root/actual location of those bones/trajecto ...

Control Rig Box Selection Innacurate

UE - Anim - Rigging - Control Rig - Nov 17, 2025

When useing marquee select on controls in the rig, their on screen size determines how likely they are to be included in the selection which isn't a reliable enough method for animators. Our workaro ...

Poseable mesh incorrectly rotates if "Set Bone Rotation by Name" is used in construction script

UE - Gameplay - Sep 21, 2015

Using "Set Bone Rotation by Name" in the construction script of a blueprint using poseable meshes incorrectly rotates the mesh. ...

With root motion, AnimSeq moves in Persona when Additive Anim is enabled

OLD - Anim - May 26, 2015

Animation Sequence preview moves from the origin with root motion enabled and either local or mesh space selected for the Additive Anim Type. Example Project: [Link Removed] ...