/rws/sm_addin/stop_egm_stream not stopping egm joint states

[bryangd34]

I have the robot's joint positions being updated on the topic /egm/joint_states.
I would like to stop receiving these joint positions on /egm/joint_states.
rosservice call /rws/sm_addin/stop_egm_stream "{}"
Returns: result_code: 1
But the /egm/joint_states topic continues to be updated with joint positions.

I tried also rosservice call /rws/sm_addin/stop_egm "{}"
with the same result.

Any ideas how I can conveniently stop joint positions being published to /egm/joint_states?
Thanks.