Exchange Public Folder Migration

Hay 

i have a problem with migrated public folders, exchange 2007 > 2013

i had Contact folder in public folder winch was assigned as additional Outlook Address book, after the migration it was removed, that's nut an issue, what's strange is that when i try to add it back again as outlook address book it will disappear again in a few hours can't figure this out

thanks Daniel

djmime