Why does the simulated M cost roll pull the simulated P cost instead of the frozen P cost?

Hi

In JDE E1, 9.2 - I've noticed that when running a simulated manufactured cost process, R30812, the simulated cost of the component (P item) is pulled, instead of the frozen cost component.

In usual circumstances, the simulated and frozen component costs would be the same, but if a user entered a new simulated component cost (P item) and didn't freeze it, then this would cause a problem, as I would expect the process should be that the frozen cost is pulled into the M item.

Is it correct that simulating a new M cost should result in the simulated P cost being pulled, or is this a bug, or processing option that should be changed to use the frozen P cost?