Currently using Cubecart 6.0.2, started with 6.0.0 right when it was released. I had a customer email me yesterday stating that the address information on his order was from a completely different customer. A bit of investigation showed that yes, this customer did create an account with his own information, but for some reason Cubecart pulled the address information from a completely different previously registered customer to populate the default address fields. Fortunately he caught it and brought it go my attention before I shipped his order. In looking back in the customer list, I see that many (but not all) of my customers seem to have default address pulled from previously registered customers. You can see the problem this presents, even if the customer catches it before placing an order. The software was updated from 6.0.0 to 6.0.2 right back when 6.0.2 was first released and didn't receive any indications there were problems. I'm fairly certain that the database schema was upgraded. Just to be sure, I downloaded 6.0.2 again and tried to reinstall it, but the system said I was already at the latest version and wouldn't let me proceed. I do see an error in the logs which is probably related, as it seems to be thrown for the customers who have this issue. A redacted sample is: File: [user.class.php] Line: [365] "INSERT INTO `cube_CubeCart_customer` (`title`,`first_name`,`last_name`,`email`,`phone`,`mobile`,`password`,`new_password`,`ip_address`,`registered`,`type`) VALUES ([REDACTED]);" - Duplicate entry '[REDACTED]' for key 'email' Orders also seem to be attributed to the wrong customers, which is also quite problematic. Obviously, this is disturbing to my customers, so any help I can get in resolving this quickly would be greatly appreciated, thanks.