Connect advanced factory block to storage block and connect the same storage block to the same advanced factory block. Begin production of either pickup points, pickup rails, or shootout rails. The factory will pull the materials from storage and the items will be produced. However, the items are never pulled back to storage from the factories. Disconnecting and reconnecting the advanced factory/storage blocks has no effect and the storage block will not pull these items from the factory regardless of the number of ticks. All other items seem to pull to storage from the factory without incident.