Can not upload .oam in Wordpress

For 2 days ago I couldn't drag and drop .oam in my Tumult Hype Animations (v1.9.5)

The pop up window is empty. How I can fix it?

I've tried with Sarafi, Firefox and Chrome. The pop up window are the same.

Is this a new problem or did it never work?

I'd be happy to take a look at your site -- Can you send me a private message so I can look at what might be going on with your WP installation? You can click 'Message' on my profile page here: Profile - Daniel - Tumult Forums