Preferences Purchasing Defaults 12.2.7 - charge account

Hello everyone,

I have a question about the Purchasing Defaults which can be set via Preferences, we are on release 12.2.7. Here is the navigation path:

Buyer Work Center > Orders > Scroll wheel at the top > Preferences > Purchasing defaults > Billing Defaults > PO Charge Account (see attached)

Upon review of (Doc ID 1067139.1) it seems that this setting has the highest precedence which overrides the others.

Expense Not a PO autocreated from

a req. Not Project. 1 Preferences

Expense Non-Project 2 Expense 

Expense Non-Project 3 Employee Profile for Assignment in Purchasing OU's SOB

However, when you set the PO Charge account and then create an Order (PO) in the buyer work center (direct, no requisition) - it will pick up the value from the default. But it will also seem to delete the PO Charge Account from the Billing Defaults ?! making it a one time use item. this seems to happen both in Standard purchasing and CLM. There are no customization on the account generator or the workflow.