Maybe someone has experienced this before and can help me.
When trying to upload the tutorial data, a login pop-up appears. After entering the correct credentials and pressing okay, the pop-up returns after a second or two. Clicking 'cancel' results in "Unauthorized" to pop up on the screen where the "Select File" button normally is before refreshing and resetting the page.
I am logged in as administrator, so I'm not sure why I am being prompted to enter my credentials again. I tried both as the admin and as the power user, but neither worked.