The user uses Outlook 2010 on three different stations. There is a Contact List within Public Folders that is added to Favorites so it appears under Other Contacts.
It will sync across all stations but then eventually it will just be removed. To resolve the problem we either have to add the Contact List back to Favorites under Public Folders or remove it from Favorites and re-add it to Favorites.
I wasn't able to find out why this is happening. We're running Exchange 2010 with the latest updates.
Can anyone provide any direction to resolve this issue?