How to unlink this..?

As you can see some of my Cubes are linked to cube 153. I want them to unlink because if I press p and than Esc all my cubes are moved into cube 153.

If i press the unlink putton it says: ‘not yet’…
Does anyone know how to fix this?



And this is only when I record it to IPO. So if deactivate the Recording to IPO there is nothing wrong. And now I have like 400 cubes and 200 of them move to cube 153.

Is there any who had this problem before?