We've created several courses in Captivate 8 and published to our Moodle 2.6. In every course, for about 5% of users, there are serious reporting problems.
In one case, the user's quiz grade reports as 0 in the grader, but when you click on their activity, it says "Status: Completed" and when you click on interactions, you can clearly see which quiz questions they got right and wrong, and that they passed the 80% "pass" threshold.
In another case, the user's grade appears as 0, their status shows as Incomplete and that they suspended the course at some point partway through, but they swear up and down that they've completed it, and in some cases even have screen grabs of their scores (as displayed to the user from the Captivate module).
This only impacts some users -- everyone else reports their grades just fine. But in every course, both of these problems have happened to a noticeable chunk of users, and I truly don't know how to troubleshoot it. Any advice as to what could be going wrong?