Syntheyes: tracking static object with moving camera



I have to track a scene in Syntheyes where the camera is dolling out and there’s a static object in the middle of the scene. Once solved the camera’s movement looks right and the trackers on the walls and floor stay fixed into their position.
My only problem is the only static object (Scene:Add moving object): even if it should stay still, it moves proportionate to the camera’s position.

I tried to add more trackers, do redo the solve and to put some distance constrain on the obj but I couldn’t find a solution.
Someone has any idea how I can solve this mess?

Thank you