ASCP creating planned order ahead of existing non std WO or PO in receiving

We are on 12.2.6

We are seeing that ASCP is creating planned order using that to meet the oldest demand .Example Component C1 has non std WOs  and has dependent demands D1,D2,D3(D1  having the earliest date and D3 the last)from its higher level assembly.Instead of using the non std WOs to meet the demand D1 it is creating a planned order to meet D1 and the non std WOs to meet D2 and D3 .Same behavior when C1 has PO in receiving and a dependant demand from its upper level assembly it creates a planned order to meet the oldest  demand and uses the