Server version 2.18.3.
I am playing around with the FilePersistant storage. My test Room saves, and I can see the file. When I use getParentZone().getRoomPersistenceApi().loadRoom(roomname) I get this error.
tablename = "1864743674_-1480107014"
e = "com.smartfoxserver.v2.persistence.room.SFSStorageException: Cannot find stored Room file for Room named: 1864743674_-1480107014, Zone: OnlineBridgeClub"
At the same time getParentZone().getRoomPersistenceApi().loadAllRooms(); happily load all saved rooms. See attached image of the result.
I did play with the room names, removing the _, and the - , same result.
Workaround is iterating over a group of tables, which is not too bad unless the underlying logic of loadRoom( name) is much more efficient.