History DB transfer for Job History data

We have recently set up the History DB V9 and testing the data transfer. When we ran the export job, the data for WatchProperty tables and ProcessInfo has moved but the data for Job History table hasn't moved.

The configuration parameters value is as below.

Common\ProcessState\JobHistory --> ALL

Common\ProcessState\JobHistory\IsToExport --> 1

Common\ProcessState\JobHistory\LifeTime --> 100

I could see the data in JobHistory older than 100 days in the main database. What could be the reason for the data not being transferred.