PyFluent new meshing workflow example does not work well

[fncajs]

https://fluent.docs.pyansys.com/version/stable/user_guide/meshing_workflow/new_meshing_workflows.html#ref-user-guide-new-meshing-workflows

I'm following the example of PyFluent meshing workflow, but a specific command isn't working.

watertight.create_surface_mesh.cfd_surface_mesh_controls.max_size.set_state(0.3) <- not working

so I changed

watertight.create_surface_mesh.cfd_surface_mesh_controls.max_size = 0.3 <- work well.

This issue persists even when generating the volume mesh.

watertight.create_volume_mesh.volume_fill_controls.hex_max_cell_length.set_state(0.3) <- not working

watertight.create_volume_mesh.volume_fill_controls.hex_max_cell_length = 0.3 <- not working

The values are not updating in the graphics window, and consequently, they are not reflected in the mesh generation.
I want to solve this issue using only the new meshing workflow.
Is there a command to update the values? Also, when using a poly mesh, what command should I use instead of 'hex_max_cell'

thank you.

fluent24.1
python=3.11.7
pyfluent=0.20

[fncajs]

watertight.create_volume_mesh.volume_fill_controls.tet_poly_max_cell_length = 6 work well.