I had this issue creating the mosaic datasets in SDE 10.2.2, the issue was that when creating the dataset, SDE defaulted to choosing the Server drive letter, I repaired the data link in the modify tab when right clicking on the dataset, this worked, but when I looked at the dataset on the server on any other computer other than my own, the checkerboard was there. To fix the issue I set the new path in the repair link dialogue to the server name and the drive name, here is how it looked for our server:
\\<server name>\<gis_data>(this is the name of the drive that the rasters reside on, NOT the drive letter)\raster\drg\100k\utm12 or utm13
After using this as the connection path everything worked, because the dataset seemed to be defaulting to see my drives rather than the drives that the dataset were created from, now with the full name it is the same for all of our users. I hope that this helps others.