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I am not sure if I understand your question. Did you misalign the camera in purpose and then checked on rviz only to see that the lidar is still aligned with the map? If so it means your robot is delocalized, amcl is forcing the robot to have a position derivated from the transform between camera and robot. So if your transform is wrong (after moving the camera) your robot's position will have a rotational error equal to the amount by which you rotated your camera.