E9.2 WO not in status flow


I have work order activity rules processing turned on.
Seeing an error when you have a Make to order item entered on an SB. When your release to SO, if no changes need to be made to the order then no error pops up, if you need to make a change to an order you are suddenly hit with WO status not in flow, this can be seen when updating a purchase order number. I reviewed the status of the WO and it meets the allowable criteria.