Work order released from ASCP does not show component substitutes

We ran a plan with component substitutes decision rule enabled and got those substitute component supplies are pegged in the plan. Planned order for the FG item shows the component substitute supplies pegging in the plan output. But when we release the planned order for the FG item, the work order is created with all the components from Bill. None of the component substitutes are seen as the material requirements of that work order. Is this correct? We expected the component substitute to be seen in the material requirements when such work orders created from the plan.