Quote Originally Posted by lat9 View Post
@royaldave, thanks for the update. I'm in the middle of a couple of projects right now, but will take a look now that I understand your requirements when I've got a little down-time.
Ah, I see the issue. You've got OPC configured with Enable shipping=billing? set false, and the shipto address is not (yet) fully formed but OPC is not recognizing that.

I'll send you a PM so that you can send me your updates to any OPC modules you've changed so that I can reproduce the issue on my test site and get back with a solution.