PDF invoice is not generated automatically

Hello,

the PDF invoice is not generated automatically after an order paid by PayPal and positively confirmed by IPN, so that invoice is not attached to the email notification order sent to admins and customer. However it can be generated later manually.

I think that if it is not a bug, it needs a very urgent fixing to avoid to forgot to create invoices manually each time I do receive an order and keep the whole automatic system working at its best production level.

This issue is happening on all my sites after the last plugin update.

Thank you.

Best regards,
Jra