When importing exemption policies for users, you receive an error stating the following:
An unexpected error has occurred. This could be due to one of the following: 1) Your session timed out and you selected a link that was no longer valid, 2) You used the browser back or forward button placing the system into an inconsistent state, or 3) The system experienced a temporary problem.
Other policies imported correctly.
Some policy/response rule items will not import between 15.5 and 15.8 and will need to be recreated manually.
Refer to Configuring Policies.