Automated Email Attaching Order Not Invoice

I've been trying to get this issue resolved, but can;t find anything on the forum or in the documentation..

When I change the status of an order from Open to Completed, the system sends an email to the customer. It's set to attach an invoice, but no matter what I try, it only sends a copy of the order (even tho the pdf is called named invoicexx.pdf.

Anyone have any suggestions?

(MVE 4.6.1 brand new install)

Are you using the older and more reliable/extensible template emails, or the new email editor?

If the older template based emails, then what have you chosen for the 'Invoice/Credit memo' selection?

Are you using the older and more reliable/extensible template emails, or the new email editor?

If the older template based emails, then what have you chosen for the 'Invoice/Credit memo' selection?

Ability to attach PDF invoices exists for the new editor only, isn't it?

Could be, I haven't a clue about the new editor. It's basically addon-developer-unfriendly so I generally ignore it.

It's the latest version.... But we're kinda getting there.

Basically it works now and then, not consistently tho...