An order is in the status "Manual Operation Required" (MO), but there are no more items requiring manual provisioning, there had been one, but it had been successfully completed.
According to the order flow there is only one transition from the order status MO -> PC/PN (with handler
OF_IsProvisioningCompleteExeption), which means an order will go further from MO either when all the provisioning items are in the status
Completed or one of them is in the
Failed. In the situation described above some kind of provisioning operation continues (e.g. the domain is being registered), therefore the order status is not changed (there is a "Provisioning" item). The situation is considered to be a bug with id #PBA-61023 ("Order may be in “Manual Operation Required” (MO) status when no manual operations are required").
No actions are required. Wait till provisioning finishes, an order will become get
Completed status or fail, an order will get
Provisioning Failed status.