Triplicate Time stamps in csv from android app

Using MetaMotionR and the android app, i get something like that:

epoch (ms),time (01:00),elapsed (s),x-axis (g),y-axis (g),z-axis (g)
1540952143855,2018-10-31T03:15:43.855,0.000,-0.678,0.392,-0.655
1540952143855,2018-10-31T03:15:43.855,0.000,-0.682,0.404,-0.659
1540952143855,2018-10-31T03:15:43.855,0.000,-0.681,0.392,-0.662
1540952144103,2018-10-31T03:15:44.103,0.248,-0.675,0.400,-0.665
1540952144103,2018-10-31T03:15:44.103,0.248,-0.675,0.406,-0.664
1540952144103,2018-10-31T03:15:44.103,0.248,-0.685,0.393,-0.653
1540952144339,2018-10-31T03:15:44.339,0.484,-0.676,0.403,-0.661
1540952144339,2018-10-31T03:15:44.339,0.484,-0.669,0.415,-0.667
1540952144339,2018-10-31T03:15:44.339,0.484,-0.674,0.412,-0.661

note that time stamps come in triplicates, while the values vary. Is that a problem of my phone?