Unreal Engine Issues

It's possible to create a locked state on a rigidbody by creating a TransientField that will keep the rigdbody Sleeping even after it leaves the Field's area of influence

The licensee found a way to lock the state of a rigidbody as PBDRigid->ObjectState() == EObjectStateType::Sleeping by subjecting it to a particular transient field composed of a RadialFalloff and a ...

Root Motion (RMFE) - Blend with cached pose causes inaccurate root motion

With Root Motion From Everything enabled, a Blend node gives different results when feeding it Animation Sequences directly or when first using a Cached Pose. *Simple test project attached Two sce ...

Translucent materials with tessellation

When using a material with a translucent blend mode, you can not use the lighting modes "Volumetric PerVertex NonDirectional", or "Volumetric PerVertex Directional" and the Tessellation settings "PN ...

Constraint to kinematic root body prevents skeletal mesh from sleeping

Linked test project contains already set up actor as described in steps to reproduce. Using a kinematic body on a root bone, setting all other bodies sleep family to Custom, and their custom sleep t ...

Compute shader TAADilateVelocity crashes on macOS

Summary A licensee recently integrated the Oceanology 5 plugin from the marketplace and it triggered a crash on macOS/Metal.Platform The licensee is running macOS Bit Sur 11.5.2 on an AMD Radeon Pro ...

StreamableManager does not apply CoreRedirects to loaded paths

When loading soft object paths directly, it applies any important CoreRedirects by calling the function FixupCoreRedirects if the initial load attempt fails. In the repro steps, this will apply this ...

WP HLOD Crash on Small Cell Sizes

LOD Build Scale set higher than 1 will cause a merged actor to increase to that scale when created

LOD Build Scale set higher than 1 will cause a merged actor to increase to that scale when created. It seems to be using the LOD Build Scale to double in size on actor merge. This is a regression: ...

Crash in GameplayTag Editor Widget when editing array of tags on a component

Editing an array of gameplay tags on a component belonging to an actor instance can lead to a crash. There are inconsistencies with how the Gameplay Tag Editor widget behaves:Array of gameplay tags ...

Video material previews incorrectly on Mac

Received multiple reports of users on Mac computers experiencing issues previewing video materials in Twinmotion 2025.1. When adding video materials to the scene, the scale seems to be incorrect an ...