Mavic 4 way points and points of interest.

[Lifeon3]

I am trying to set up a simple 3 waypoint mission with one POI. It's a simple straight line backwards, however, when I set it all up, the drone starts at the first way point and turns to the right but the point of interest is straight ahead. The drone should just move backwards while filiming ,keeping the POI in the center of the screen. Why is the drone turning? I check my settings, way points are linked to POI. Heading is set to POI.