Problem: Published Mosaic Dataset does not display overviews
After publishing a mosaic dataset, the image service overviews do not display.
The mosaic dataset was created and published with a version of ArcGIS Desktop that has a more recent service pack than ArcGIS Server.
Solution or Workaround
Upgrade ArcGIS Server to the same service pack as ArcGIS Desktop from the Patches and Services Packs page.