Query about CR and DR on PA Cost Distribution Lines

Hi,

We are using R12.1.3 - I have noticed something but I don't know what is causing the issue.

For some Projects, I notice that for an AP Invoice linked to the Project, if I look at the Cost Distribution Line of Expenditure Items created via the Invoice, I see this:

For this example, transfer_status_code = V, Received (Received from other appplication.  This status only applies to vendor invoice costs)

However, for another Project, for a different AP Invoice, I see the following on the Cost Distribution Line:

In this case, the DR and CR are populated, and transfer_status_code = A, Accepted (Accepted by other application).