Message when adding payment that transaction may not be successful

When adding payment through Edit Order, we are getting the error message at the bottom of this post. The payment is going through to Authorize.net, but is not showing as completed in the WooCommerce Order. The steps we have been taking to add manual payment are:

1) Edit Order
2) Change order from Completed to Pending Payment
3) Click Add item (to the order)
4) Put in the item amount and save
5) In the manual Payment, add the credit card info and the amount and then click on Charge.
6) that is when the following message below appears

Are we missing a step, or doing this incorrectly? We want the additional item to appear on the export Reports, which they do when we enter the additional item and charge this way.

Sorry, there was an error. We don’t know whether the transaction was successful. Please check your payment processor account to confirm. You may be able to find additional information in your PHP error log.

Array
(
[0] => completed
)
{“status”:”success”,”message”:””,”code”:null,”data”:{“trans_id”:”2345678889″,”held_for_review”:false,”order”:{},”capture”:true,”description”:”Company Name”,”action”:”woo_mp_process_transaction”,”_wpnonce”:”bd3ec85fb5″,”gateway_id”:”authorize_net”,”order_id”:”5431″,”transaction_type”:”charge”,”amount”:”33.25″,”currency”:”USD”,”last_4″:”4301″,”token”:”eyJjb2RlIjoiNCBfMl8wNjAwMDUyRTUxMjRBQzg0ODQ2QzIzMTRFMkZBMTcwNjUwMDg5M0U5NTIxNzM4RDA4NTMyNDMyN0IwNTI4MkZBQUM1Qjk0QTNERTdFMThCNTc1N0ZFMkFEREI3NzcyQTY5N0NBQkQ2IiwidG9rZW4iOiI5NTU5OTE2ODIwNTY3OTc3NTA0ODA1IiwidiI6IjEuMSJ9″,”tax_amount”:”0.00″,”freight_amount”:”0.00″,”duty_amount”:”0.00″,”po_number”:””,”tax_exempt”:”false”}}