In Chrome, you'll need to allow the plug-in for flash to run for it to play, it's likely what is causing the issue. Hope this helps! (I'll put a note in the description for future folks!)
how do you allow it to run?
Click on the green lock, go site settings. To the right of where it says Flash it either says "Ask", "Allow" or "Block" click "Allow" Okay? That worked for me and I'm on Chrome :D