Packing slip items merging and rearranging itself in ascending order issue

Hello,

I am having Batch Number Combining issue.

​Batch Number Combining - when two of the same ITEM Code are on a Delivery Note but they have different Batch Numbers, the system is combing those and only showing a single batch number. It randomly selects one of the batch number.

This is a very serious issue for us and I am worried that it could cause the inventory to be way off if its not using the correct batches vs what was actually shipped.

Thanks.

If anyone having same issues. Please help.