sharepoint online workflow content approval doesn’t send email for some reason

I have a list and i have set it to use the require content approval.
I created a workflow SP 2013 to send an email when

If Approval Status = "Pending"
 - Send Email 

When i run the workflow manually or when an item is created it doesn’t send an email.
But when i use SP 2010 designer workflow it works.
Why is SP 2013 designer workflow isn’t sending emails. Am i missing something with the content approval with SP 2013 designer?

Thanks in Advance