This will be displayed if the PST file in the holding area hasn't been backed up. If you are using the PST Collector task there is an option which is "Wait for PSTs to be backed up before migrating them"
This is unticked in the PST collector task properties
If you go to the properties of the PSTs in the Admin Console are there any error reports? The network issues reported in your log file may be stopping the copy process, or it could be that the Collector task is waiting for the files to be backed up
No error reports, in the failure text box, there is a none message and when i go to the history tab, it just says "No migrations have been recorded for this PST"
If you have both client-driven and PST Locator driven migration then this could cause PSTs to be picked up by the Locator ahead of client-driven migration. To stop this from happening, set the user's desktop to not be scanned in the Personal Store Management > Computers container in the Admin Console
none of the Pc's or laptops have this tick box selected, there are only 2 servers which have this selected
Just as a side note, would deleting the *.db files that exist in the folders below , help in any way, or is just better to leave them there.