Hi again @linden.haynes
I am sorry about the late reply to your inquiry.
It appears that the issue in resetting the template is caused by the liquid variables inside the template being replaced by {{ resource_name | escape }} in the body elements that appear to be missing. You would need to replace those variables with something appropriate available in the list of common variables mentioned in our documentation.
As for the HTML error, if you simply remove them, the template should work just fine, however, I understand that the default template should not include them at all.
If you have any other questions, let me know!
Kind Regards,
Nik