Hi There,
In some Jira tickets, I have been the Issue Watcher but I don't receive email when the reporter comment. Another user also experiencing a similar issue, sometimes receive and sometimes not. This is randomly happened. Notification Helper Page indicates that our users should be notified, in fact we are not receiving our notifications in JIRA.
Now the Jira server is 8.5.5, is it a bug? does any workaround?