Notification triggered but email not sent

[Sruthi17]

Hi experts,
Kindly help me solve the below stuff
I have a email notification, its getting triggered but no emails sent

When I add a worknote to incident, I see the log message in the system logs, but I see no emails in 'sys_email' table
Verified that the incident has a active "assigned to" user who has email.

Can anyone help me find what the issue is?

[Sruthi17 · Accepted solution]

We created a case with ServiceNow for this issue, and servicenow side also unable to find the root cause.
They mentioned that the notification is corrupted when upgrading.
Hence we created a new notification and it started working.
Thanks