i noticed that this is a problem with xenmobile mdx app wrapping. http://blogs.citrix.com/2013/12/09/mobile-mdx-apps-wrapping-issues/
in watchlist, we currently don't have an entry in our plist of "Icon File". but all of our icons are specified properly according to the apple guidelines.
will try to see if we can add that entry in the next update. have you considered using Air Watch for your mobile app management? :-)
thanks, louie