Valid for Sitecore
5.3
SQLite Scheduled Task
This issue applies to SQLite Sitecore database storage. If you create a scheduled task under /sitecore/system/Tasks/Schedules/ and fill the Items field, the appropriate scheduled method will receive an empty item list.
The following package fixes the problem:
Warning : Install the package only if you experience the problem with this functionality. Otherwise avoid using the package because the performance may suffer from operations of comparison invoked by the package.