"Iissue & receipt" to close a Mfg order
Choose a "movement date" back in time
Change Component "Qty to Deliver" to be different from "QtyRequired"
Complete the movement
This correctly creates cost collector "usage variance", but the cost collector for this "usage variance" (and later the accounting post) use the current date in the movement date instead of the movement date selected above during the "Issue & Receipt"
3.6.0 +P20110709