Hey... I have the exact same problem. When I initially preview or publish the site, everything works out great! However, a few reloads or switches to other sites lead to the same bug. The video just doesn't play anymore. I'm using it in section mode (in a frame with the correct graphic style and a fill with 100% opacity). Since this is a very important project for a big company I really need immediate help. The page is: http://introvertriebspartner.businesscatalyst.com Please try some site switches and resize the browser to 1440px. Sometimes if the video doesn't play, you just need to shrink the browser width for 1px and it immediately plays again... Please help me!