I'm still busy setting up my shop using the latest Essential version. It all worked fine sofar, untill I was updating my payment methods. I was first using the Check payment plugin, while I meant to use the Bank transfer method. After setting up both of them all still worked, but then I Unpublished the Check payment plugin.
Now when I go to the checkout (using the following workflow: address,shipping,payment,confirm_cart_status_fields_terms,end), I can select the Shipment, and then the Payment method, but then the previous screen is being returned, saying I did not select any Transfer method. Also I noticed I can now by bypass the Shipment page without selecting anything, only when I reach the Payment page, the Shipment step is being checked.
I could more or less fix this issue by publishing the cheque payment plugin again, and the checkout worked, but now I found on the confirmation screen that even when selecting Bank transfer, still Cheque payment was confirmed as the chosen method.
Looks like the payment plugins are quite mixed up...