I have using Automation within IT Service Management. I have it setup to assign a user to the issue and then after that, send an email to the assigned user.

When the automation is triggered, I get this error:
Could not send email, the 'To' address field is empty. If you have referenced a field it may be empty.
It's almost like it's trying to send the email prior to assigning the user.
Is this a bug in the system or is there a way I can better handle this?