User Receives Communication Failure Error / bandaid when creating a new Email from a custom Template due to unapproved snippet.
Email templates can contain code to reference a snippet by ID:
<div class="mktoSnippet" id="FooterText" mktoName="Footer Text" mktoDefaultSnippetId="3"></div>
If the snippet is not approved then a new email asset cannot be created, and instead a bandaid error occurs. The snippet should be approved first before the template is used.
If the ID of the snippet in the HTML is 3 and the pod sj27, the URL to the asset would be Login | Marketo