Success behaviors rarely work for Aruco cube

[bm-hellorobot]

Seen on multiple new robots - when running the default version of Vis Servo demo with the aruco cube, the fingers servo and grasp the object successfully but the 'success behavior' where the robot pulls away and then wiggles side to side only triggbers ~10% of the time - typically the robot remains with its arm outstretched, and sometimes gently pulling the lift and/or arm in some direction, as though still servoing. Notably, this is not true for the yolo-tennis ball version of the demo, where the success behavior almost always works correctly.