Without being all technical, there is no real reason for this to happen unless you've made a mistake submitting it, make sure your mission is altogether and double or triple check everything you have filled in. You might of submitted it a load of times but you could of easily made a mistake somewhere. If it still hapens after checking all the details you have put down, thne itmust be something a bit more complex. You aren't the only person though who cant et their mission uploaded.
::Mitrokhin sgning off::