Probable cause

A remote database is synchronizing a table with at least one timestamp column while the timestamp precision on the remote database is higher than that of the consolidated database. The uploaded value will lose precision after being stored in the consolidated database. The MobiLink server compares upload rows and download rows in order to filter away redundant download rows. The loss of precision may create a virtual difference that defeats the download filtering. This situation can affect download performance. To avoid this performance penalty, you should align timestamp precision across all databases involved in your synchronization system.