You've already synchronization set up and running, but you've realized that some fields are missing in synced issues. Your synchronization includes thousands of issues from within different projects and it takes quite some time to sync once again.
The Data Filter does not have a script for the missing fields.
- Add the script for the missing fields into the Data Filter on the Source instance.
Back up and empty the Change Processor on the Destination instance.
Please be sure that no other changes to the issues under sync would be being made by users while you are performing this force sync.
You should set back the existing Change Processor code as soon as possible.
- Add the missing fields script into the Change Processor.
- Run Bulk Exalate on the existing trigger.
- Set back the Change Processor, including the code used to sync missing fields.