After receipt quality routing the purchase order not moved to next status 999

We have the follow problem in procurement and I cannot find a solution in the knowledge garden:

Scenario:

after create a purchase order, run order receipt P4312 in a quality routing RQ01.

the status of the purchase order is 400 / 400 and the purchase order number show bold.

with routing movement and disposition P43250 move a partial quantity to stock.

because the remain quantity, the order number is still bold and status 400 / 400

after movement of the remain quantity, the order number is not bold anymore but the next status of the purchase order not moved to 999.

in my opinion the system only check the current move quantity and not consider if the quantity is complete.