MPU9250 linear accel eMD 6.12

Hi,
I think i may have a problem with my MPU9250 accelerometer.
In my understanding of the accelerometer on the acceleration the value increases and on the breaking the value should be negative. And bouth should be the same area.
I'm using the DMP of the eMD 6.12, pretty much like in the example, acceleration via inv_get_sensor_type_linear_acceleration, 30Hz data update. The Sensor is factory calibrated.
Everything is working i think, but if you inspect the attached picture you can see that the acceleration (orange) is lower than the break force (red). And additionally in the blue box there is no movement but the accelerometer gives me high values. It seems like some filter is not doing well.
Has anyone a idea what could be the problem?