SweepComponent fails against non-root bodies of skeletal mesh component in PhysX

Simulation - Physics - Apr 6, 2021

UDN - https://udn.unrealengine.com/s/question/0D52L00005H9X5XSAV/sweepcomponent-never-returns-a-valid-hit-against-skeletal-meshes-when-using-physx?fromCase=1 ...

Replace with child on subtree of the NamedSlot is broken after reloading a widget.

Tools - UMG - Apr 5, 2021

"Replace with child" does not work well with the NamedSlot widget after reloading the widget blueprint in Contents Browser. ...

Crash when deleting the Add Component By Class node after changing the Relative Transform of the component

Gameplay - Blueprint - Mar 31, 2021

When adding the Add Component By Class node, choosing a class that has a Relative Transform pin, changing the transform, and deleting the node the editor crashes. I tested this with the Skeletal Mes ...

Managed particle systems can fail to be removed from managed ticking when pending registration

Rendering - Cascade - Mar 31, 2021

UParticleSystemComponent::SetComponentTickEnabled can fail to disable ticking due to IsTickedManaged not checking if the particles system is pending registration. The crash was in part because of c ...

Crash when adding a Material Layer with a MaterialFunctionCall node to a Material Instance

Rendering - Mar 30, 2021

Adding a Material Layer to a Material Instance that has a Material Function Call node connected to the Set Material Attributes node causes the editor to crash. I tested a Material Layer without the ...

Assert when adding geometry cache asset as a component to a blueprint actor

Tools - Import and Export - Mar 24, 2021

When adding an asset directly to a blueprint, it is not in the streaming components, so the assertion fails when setting the geometry cache. ...

Crash when using adaptive virtual texture

Rendering - Features Teams - Mar 24, 2021

A check() is being hit intermittently when using adaptive virtual texture. check(Entry.Magic == Handle.Magic) inside FVirtualTextureProducerCollection::GetProducer ...

Skelmesh Bake Materials doesn't remove old materials from slots

Tools - Merge Actor - Mar 24, 2021

When an LOD get materials reduced to one with Bake Materials, it doesn't delete the extra slots on the LOD. So if starting with 10 slots on the skelmesh, then baking, slot 1 gets the newly baked mat ...