If folder properties are unavailable on some or all public folders after a restoration of an Exchange Server information store to a new Exchange Server Directory (Dir.edb), see ME192043
for a workaround.
The recovery server, on which the information store was restored, did not have a copy of the folder from the production server. Therefore, when you run the directory service or information store checker on this computer, the directory service or information store checker does not have information about all of the other servers and mailboxes in the organization. As a result, the public folders are re-homed to the recovery server. In addition to re-homing the public folders, because a directory object for the public folders is not found in the folder on the recovery server, a new directory object is created for each re-homed public folder