Views:
Typical causes for this are:
  1. End user mis-step in Qty Fulfilled which resets other quantity values incorrectly
  2. Failed prior transfer to invoice
  3. Damaged file (not likely)
Solution is to edit the fields...
    AtyAlloc = Quantity
    QtyRemai = Quantity
    QtyToInv = Quantity
    QryFulFi = Quantity
    QtyPrInv = 0