I have a problem for some users on sharepoint 2010. Their my settings information is different than their my profile information. My understanding is the my profile information is read from the user profile DB and the mysettings information is read from the user information list. A user profile to sharepoint full sync is run to update the user information list DB from the user profile DB.
I would expect for one to overwrite the other but this seems not to be the case. Updates are working fine for other users and new users. I am suspicious that something may have been manually deleted in the past with this in mind how can I resolve this and some insight into which DB overwrites which would be good.