Hi again, I am using the product, the cleaning and mapping is very good, but it keeps bumping into the legs of the coffee table, it tries to go through the table legs, it bumps into the table leg, it bumps into the wall, is this normal or The camera has a 3D sensor, a little disappointing, I wonder if it could be a manufacturing defect or is it normal, can anyone write an opinion?It bumps against the wall everywhere, is this normal or The camera has a 3D sensor, a little disappointing, I wonder if it could be a manufacturing defect or is it normal, can someone write an opinion, thank you, does it not damage the machine?