Last night I cut over a few WP7 7.0 applications using the AdControl to 7.1 (Mango). In the process I lost the AdControl on all the application pages. No error, not complaint just an empty place where the AdControl should have been. If I was paying close attention I could see a brief flicker of the outline of the AdControl as though it was loading.
Tags Fix, Windows Phone 7, WP7