Hi. We have an issue with orders apparently changing status randomly on version 220.127.116.11. We use the default template with styling changes and 5 or 6 modules. Essentially orders appear to set back to complete after they've been set to shipped - meaning they can get shipped again. Not good!
I'm wondering if this is anything to do with delayed IPNs - payment is via PayPal. We have seen this type of behaviour on other carts and whilst PayPal claim that IPN is 100% robust, experience suggests otherwise.
Has anyone seen behaviour like this please and if so, what was it and is there a published fix?
You could check your server access logs to find out whether paypal IPN call backs are indeed responsible for changing the order status.
Chris, Opencart Developers and Programmers,