Indented Bills not costing - r12

Hi,

We use Standard cost as our costing method.

I run the supply chain cost roll ups and Cost manager is up and running and all costing flags for the item are on, and the "make" attribute for the parent item

in the General Planning tab is "make" but still extended costs in the indented BOM are not calculated for some items.

Any idea what is the reason that cause it?

Thanks