Motion Vectors NOT working in HDRP Unity 2020.2 or HDRP V 8.3.1 and above

Motion Vectors NOT working in HDRP Unity 2020.2 or HDRP V 8.3.1 and above

NO motion vectors in HDRP V 8.3.1 and above

DecodeMotionVector(LOAD_TEXTURE2D_X(_CameraMotionVectorsTexture, UV), MotionVector);

Gives nothing, what has changed?

It is working perfectly fine in Unity 2019 , 2020.1 but nothing in Unity 2020.2

Any help would be appreciated!