SAP Mill Products - problem with material overhead rate

Hello Community,
we effort to usage the SAP Mill Product solution for utilizing combined orders. We present got a occupation with the play ending with the overhead surcharge. According to the SAP statement we power the overhead surcharging connected level of the combined orders and besides settee the worldly overhead with the colony regularisation connected to the archetypal orders. But with the play extremity closing the archetypal orders person the overhead again. The power buttons successful transaction CO43 shows nary anticipation to not prime this archetypal orders.

Is anyone acquainted with this problem?

Br
Carsten