I'm using version 5.x-1.3 of Workflow-ng.

My husband just did a test order and didn't even fill out the user account information on the checkout page (left it to ubercart to fill in; my, isn't he a typical customer!). Everything processed perfectly. Payment received and status updated in sequence apparently, file downloaded added, all email sent properly - ubercart receipt, new user account info, file download link.

Hopefully, this fix will stick. It is interesting to the non-techie like me to consider the sequence of all of these events. I can see while the file module won't add files to orders without a uid, because the file download is added to the user account -- No user id, no account to link to. How you all get all this to work is magic to me!

Anne