Accelerometer Going Crazy on Startup

Hi,
I am reading the sensor values through FIFO and using DMP to get Euler angles. (MPU 9250)
when I turn on the power, after the self test and all, the accelerometer (& gyro) values are going off the roof, mainly on the y axis. So it reads -1843 and next reading is +1667.....

This goes on for few seconds and then normalizes, but it is enough to affect the algorithm I am using.

I know that gyro are waiting for the DMP to calculate the biases, but what about the accelerometer? The factory bias settings for accelerometer are in loaded on startup and are not calculated, to my knowledge.

Funnily enough, when I read the values directly without loading DMP, I do not see this problem, so the sensors are ok I guess. (but I do need the DMP)

Is there a way to fix this this?