When it comes to printing multi-page invoices, if the height of the header is more than 251px, then it won’t print on subsequent pages. One workaround is to make your logo smaller (let’s say 100px in height) so there is still enough height for your company address before it goes over 251px.
As I said, these are weird bugs (or undocumented features?) when you rely on third-party programs to do the printing for you. That’s why I’m trying to implement internal PDF generator as soon as possible so I have full control over this. Not to mention, doing it internally, sending emails from Manager will get a lot faster and will open up for new possibilities (such as bulk-emailing etc). So
Save button won’t only solve your issue, but many others too.