There appears to be a bug in the email templates using attributes eg. {ATTRIBUTE_1}, invitation and reminder templates are ok, but not the others, please see topic below:
That is not a bug. The invitation and reminder emails are tied to tokens, the notification emails are not so the TOKEN needs to be referenced in those templates.
Code:
{TOKEN:ATTRIBUTE_1}
Cheers,
Tony Partner Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.