Unable to view reciept in correction form

Hello All,

We are facing the issue with one of the receipt for correction:

Issue details:

receipt was done for 4 parts number, say A,B,C,D for same PO number & and delivery transaction was completed for all 4 part number with out any error, now user wants to do correction for 2 parts number ( C,D) for the same receipt.

When we are trying to perform the correction we can only view part A , B in correction form, but we are not able to see part number C & D.

All the parts were received and delivered by same employee.

Strange thing is, we had done a recent of production instance, and we are able to view the records for part C & D in test instance but not in production.