I'm testing this summer to see if I can get the opaque server working. This is slightly tricky because I run the WeBWorK server but I do not have admin access to Moodle.
The Moodle people have set up things on the Moodle side according to the instructions on Mike's blog, and I have the opaque client installed, and daemon course set up on the WeBWorK side.
If I try to set up a question in Moodle, I get the following error:
The question engine was not able to return the maximum grades for this question. Are you sure the remote id and version are correct? (Technical information: Wrong Version)
Any ideas what we could be doing wrong?