Object moves after image Tracking Found

Hey Guys
I am facing this issue :
After placing an object over an image, the Object moves with the camera and not staying over the Image,
How can we Fix this Issue?
remark: ground detection and Device Track Pose is Enabled with optimization for image targets

 

Hello,

Please refer to the Vuforia Core Samples for best practices on how to structure your Unity project for this use case.

Thanks,
Vuforia Engine Support