I'm running into issues when loading HTML5 created into Revive adserver (ex OpenX).
The issues are related to the images display and the animations.
Once loaded the .zip file the preview is only displaying the name of the image but not the image itself.
In this sample attached, you can see the result of a simple banner with a background image and no animation.
I did download samples of HTML5 ready ads from Google, created with GWD and even in that case images are not displaying.
text or use colour for a background will appear.
Not sure where the issue is.