Hi there, I hope you can help.
I have the same issue like some other customer too.
1.
If I want to send an email with an attached PDF-invoice, the invoice is not attached.
I have installed DomPDF library and a folder named "pdfinvoices" . In generally the creation of an pdf invoice does work, just not attaching to the email.
2.
When creating an invoice it does not search all products (only unpublished products from one product category - yes strange) and I need to create the product manually.

I will send you login credentials on your request .

Thanks for your help T.