Missing Lines in Fin. Prod. Orders

At the request of our CIO I ran, after an update of the standard costs, the “Adjust Cost, Item Entries”. At the point where it checks the Fin. Prod Orders I got stuck. It turns out that lines in the body of the Fin. Prod. Order are missing. So, no link to the components can be made. These orders were perfectly normal when posted, I can find the components in the table. I do not have rights to change anything in the Fin Prod Order tables, I couldn’t even do it by accident. The lines that are missing are in Production Orders that don’t seem to have anything in common. Any ideas , anyone ?

I’m sorry, I forgot to mention; Version W1 2.60