I have created an Office Mix using the interactive quiz features and when I try to upload it to Mix it won't play. The loading icon just goes around and around. I've searched everywhere. I have emailed Office Mix tech support and the answer I got was we tried your website and it didn't work for us either, why don't you try doing another one. Not terribly helpful as I spent hours on this one. I am wondering if anyone else has had this problem. I keep reading about great success with Mix, but we have had nothing but trouble with it. I'd really like to be able to use this tool, any suggestions out there? My email is firstname.lastname@example.org, I'll check back here as well.