Workflow/Notification email - Body is blank

Hi all

I am using a workflow notification in MDM to send an email to a user. The email arrives as intended - correct address, correct subject line, - but the problem is the body of the email is blank. I have specified a message text (in Visio, under the notification property E-Mail Body) but the email arriving has no message in it.

Can anyone explain why this might be? Has anyone experienced this problem before?

Many Thanks

Edd