When you have a new application and you upload it to the AppStore, the icon will remain “empty” - even if it is correctly verified after downloading, your kit contains an icon and your application displays it correctly in the dock.
Only after you click "Submit to View" for the first time, it will appear (not quite sure if it is instant, but I know that it was there when I checked 1-2 hours after sending it to view) .
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