ParticlesSystem smoke simulation bbox2DTight


I am using Isaac Sim 2022.2.1, and I am running a smoke simulation created with OmniGraph ParticleSystem with a sphere shape as for the base.
I am trying to display the BoundingBox2DTight of the smoke, but the result is a bounding box on just a small part of the smoke.

Attached is a screenshot from Isaac Sim, with a class of smoke in the Semantics Schema Editor and a display of the BoundingBox2DTight and the InstanceSegmentation. Also the “output” Mesh is marked so the main display shows the outline of the smoke.

Thank you,