Sometimes Temporal Aggregation Tables (TATs) are incorrectly generated on SEM reporting servers. If you have a router, firewall, etc. between a LogLogic SEM SMS server and a LogLogic SEM Reporting server you must ensure no idle connection timeouts are in use. The TAT generation can take longer than 1 hour. During this period of time, make sure the communication between the two servers is maintained. If  communication is broken (such as if idle connection timeouts kill the connection) between the two servers then the TAT data integrity may not be guaranteed.