EasySocial logo file path in email notification previews

Hi -

I have successfully customized the logo in EasySocial notification emails by uploading my own logo into the specified folder within my template.

However, when our email notifications are viewed on a cell phone, the user sees the subject line of the email, but the whole 'preview' is taken up with the file path for the logo, complete with the name of our template (which should never be visible to the user). Is there a way to change this? Ideally, html code would be stripped from the preview.

Thanks,
Cheryl