Fields In Standard Purchase Order Blocked

Hello,

My Situation:

• Standard discrete purchase order - 5  line items
• All line items open and available for GR
• None of the line items have been deleted or locked
• Two fields on two line items only are blocked from editing
  • Also these same line items are the only line items that were created from multiple requisitions

Question -

line items have not been received and closed, not deleted, and not locked. Why can I not modify the delivery date or quantity fields in this PO?

Line 30 and 40 will not allow modification???

Including multiple pictures of the purchase requisitions for line 40 (not modifiable and not showing correctly in MD04) and line 50 (modifiable and displaying correctly) below:

Line 40

Line 50

Line item 40 - that reflects as 1 line item on the PO showing as 3 different lines in MD04 (mirroring the requisitions). We have never seen this before.

Not sure if the issues are related(1- locked fields) (2- multiple reqs per single line item).

Any feedback would be appreciated.

Thanks!