Unreal Engine Issues

memory leak from incorrect PhysX shape ref counting

PxShapes are created with a ref count of 1, and it is up to the caller to decrement this once the shape has been attached to an actor. There are a handful of places in the code in which this doesn' ...

Local Array elements with text fields do not take focus after making changes in another field

The Highlight is gray and the field does not take keyboard focus after making changes in the text field of an element of a local array and then clicking into another. ...

Crash during save level and successive load level

Changing the Max LODLevel on a landscape causes a crash in content examples. ...

Can't rollback to older version of Datasmith Max Exporter installer when SketchUp plugin is installed - error code 2753

Post Process Volume Priority Doesn't Affect Post Process Materials

Post process volume priority doesn't affect post process materials. Found in 4.19 CL# 4033788, 4.20 CL# 4302132, and 4.21 CL# 4369303 ...

Apex Destruction - Destructible Mesh disappears after Fracture

Fracturing a mesh with Apex Destruction in 4.24.1 (CL-10757647) causes the mesh to disappear after clicking Fracture. This behavior was not present in 4.23.1 (CL-9631420). Unable to confirm this in ...

USD Alembic - Groom cache shape changed from MAYA after imported into UE.

GAS: Ability that destroys owning actor on activate causes crashes due to ABILITYLIST_SCOPE_LOCK

A GameplayAbility that destroys its owning actor inside ActivateAbility() causes a crash, because actor destruction will modify the ability list but ActivateAbility() is called within an ABILITYLIST ...

IMC incorrectly retains the state of a modifier set in a lower priority mapping context.

Landscape overdraw bug

When Landscape GPU Culling is operational, patches of Landscape will have heavy overdraw. This requires Nanite and Lumen to be disabled - the test project is set up with this by default. This quad ...