Recently one of our customer's stores has had some weird behavior. Some of the customers that have ordered have their customer information (name, email address, etc) missing. Their order gets processed and completed, however no email reciept is sent and no shipping confirmation can be sent because we have no email on record.
We do not have anonymous checkout activated on the site so I'm a bit confused.
This doesn't happen to all orders only a few seemingly random ones. Has anyone ran into this before? The URL is www.umbrellas.net. Thanks.