Shipping/Billing Address Blank on some orders

Problem occurs with the Authorize.net (AIM) payment module.

This is the second time it's happened where an order comes through with no Shipping Address or Billing address. This time the Customer: field was also blank.

I get other orders coming in fine and I also tested it myself and I have no idea how this happens.

Settings for the module are:

Transaction Mode
Production

Authorization Type
Authorize

Enable Database Storage
True

Customer Notifications
False

Merchant Notifications
False

Request CVV Number
True

Sort order of display.
2

Payment Zone
--none--

Set Completed Order Status
Processing [2]

Set Refunded Order Status
Pending [1]

Debug Mode
Log File

The values in the logs and confirmation email are also blank for the addresses and customer name. For some reason email and credit card # are the only things that go through.

Like I said, it's a rare occurrence but I find it odd that it has happened twice now.

Any help? :frusty:

Thank you.