Hi Tracy, I spoke with our team again and they shared this:
"Many government agencies have blocks on their browsers. The issue does not stop them from launching the course, but it blocks our ability to capture and record the user's progress in the course. We have also found this to be more of a problem if they are using IE instead of FireFox or Chrome. Switching browsers may also help, but not guaranteed."
If this seems like something that may impact you, we suggest you try accessing the course again using Chrome or Firefox. And we do show that you have two ArcGIS accounts. If you'd like to know the username on the second account, email me at sboden@esri.com.
I hope this information is helpful, let us know if you're able to access the course and navigate freely through it.