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You can get some debugging information by running rostopic echo /joint_states. Check that r_base_RollJoint is present in all the JointState messages.

You can get some debugging information by running rostopic echo /joint_states. Check that r_base_RollJoint is present in all the JointState ~~messages.~~messages, even if the joint did not move. Also, check that the joint states are published at a reasonable rate (say, at least 10 Hz or so). You can do that using rostopic hz /joint_states.

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