So does this apply to that really cool tool called "Create Map Package" and after spending an hour and half creating it and uploading it.... you get a "Map upload failed".
and if you try adding a Map Package through My Content you get the "grey screen of death", oh but wait there is hope... the little circle of death is still spinning maybe if I wait a little longer. THe green bar is full.... what's that mean.... you've wasted another hour and half.