When I update a comment in Jira, I expect the comment to be updated in Salesforce as well, but even though I can see the update in the Sync Entity View, the comment in the Salesforce feed remains the same
I’ve validated that the Exalate Integration user can update a comment. And also that Feed Tracking is enabled for Case objects.
Sorry for late reply. I tested and default script is working as expected (even without my additional script which i provided you)
So there is something wrong going on in your environment. I would suggest lets continue this on support ticket(which you already have) now because we may need to analyse the logs.