"Running batches could read corrected product requirements while retaining older reservations and requisitions." The fix adds read-only previews and version-checked BOM and packaging repairs that update requirements, shelf reservations and unissued stock documents together. Issued or consumed material is refused, and changed requisitions go through approval again. It's a production ERP, not a design tool, but the failure is the same one: a change landed in one record and the downstream records kept the old version.