I am having this issue. We scheduled a power shutdown over the weekend and shutdown the whole cluster except 1 sub. FYI, the TFTP is on pub and was shutdown. After we got the power back, we turned back on the whole cluster.
Now, users are complaining that their ringtone setting is gone. I tested it this morning while all the servers are up, and I unplugged the phone. When I plugged the phone back, the ringtone setting stays.
So, how the ringtone setting gets lost?