Components moving in an assembly

Hi Friends,

I had created a small assembly consisting of 10 cables and some conduits. In the drawing I had saved the support frames as draft entities.

But later, I did not need one of those cables. So I deleted it. But when I did that, the rest of the cables move from their respective co-ordinates and position themselves at the wrong place.

I assembled the model by co-ordinate systems (not by normal mates).

Can anyone give me an idea why this is happening and how to rectify this?

Thanks

Mahesh