API v2.6 breaks Bing maps backgrounds?

Discussion created by stevel on Dec 14, 2011
Latest reply on Feb 13, 2012 by stevel
I have a page which works correctly using v2.5 of the API. If I replace the API version with "2.6" in the lines:

<link rel="stylesheet" type="text/css" href="">
<script type="text/javascript" src=""></script>

the map loads correctly, and my FeatureLayers and DynamicLayers are displayed - but the Bing maps backdrop is missing.

If I revert to 2.5 in these two lines, Bing maps appears.

Any clues?