Hi Henry,
I was able to get images to show up using this code:
<!-- img credit:
http://www.flickr.com/photos/mediatejack/514998819/ -->
<img src="http://farm1.static.flickr.com/198/514998819_1feb538dd6.jpg?v=0"/>
<div style="height: 335px; width: 500px; background-image: url(http://farm1.static.flickr.com/198/514998819_1feb538dd6.jpg?v=0);"></div>
<yml:image src="http://farm1.static.flickr.com/198/514998819_1feb538dd6.jpg?v=0"/>
Note: this is the only code in the "app". Please post a sample of your code if the problem persists.
Erik
At first I thought it was because I was using <img> tags and not <yml:image>, (because <yml:image> does not support CSS), but then it was also occurring for images I was using in a <div>'s background-image in a style tag. I have checked the dev-preview thing, and I have no errors listed the bottom. Is this a known issue, unknown issue, or am I doing something wrong?