Caller could not move past the Knowledge Check in n Module 1.2. After attempting to replicate his problem, Support discovered there is a "Next" button at the end of Module 1.2 that doesn't work. Module 1.1 does not have such a button, nor does 1.3. Module 1.4 does have such a button. Once the caller understood that the Modules opened in a new tab and that you had to close each to go back to the main menu, the problem was solved.