Quick answer: Unreal PhysicsHandle grab failing on certain component types? Handle requires UPrimitiveComponent with physics simulation; static meshes need simulation enabled.
Try to grab a stationary static mesh; PhysicsHandle doesn't attach.
Enable physics on the mesh
Mesh->SetSimulatePhysics(true);Allows handle attach. Mesh becomes movable.
Or use different attach
For static objects, attach via FConstraintInstance instead. More flexible.
Verify physics state
IsSimulatingPhysics check before grab.
“PhysicsHandle requires simulated physics. Static meshes are static by default.”
If grabs fail mysteriously, the physics-simulation flag is the first check.