My Neato Botvac works the same way with the one exception that the second it touches my rug it immediately goes over it in a snake pattern without any explorati

My Neato Botvac works the same way with the one exception that the second it touches my rug it immediately goes over it in a snake pattern without any exploration. The rug is thicker than the floor by about 2-3 cms so I dont know if it has some sort of special programming to recognize rectangular rugs