Sakai - 2.0.0.m2-hsql - Sakai 2.0.0.m2 (all 3 MIT sakai-stable instances)
This is a new bug that's present on the MIT instances of m2 but not on the local Stanford QA instance (http://coursework-s1.stanford.edu:8080).
After you publish an assessment to anonymous users, if you then try to take it using the published assessment url, your answers will not be saved.
Workaround: Open a new browser window and take the assessment there, and it'll work.
This is a minor problem, but it worries me that there's this difference in the code between the two versions right before we do a release.