It was private by accident and is fixed now. Please note that the URL has changed again because I've now split it out to its own repo rather than having it bundled in with all the Organic Design extensions. the link has been updated on the mediawiki.org extension page. The URL to the repo is now https://gitlab.com/Aranad/PdfBook.

I've upgraded extension to version 2.4.4 using PHP Mailer 5.2.23
https://www.mediawiki.org/wiki/Extension:EmailPage

Try now...

yep

I'll try deleting and adding again...

All three invites were sent, 2 still pending...

Ok invitations sent.

Yes that would be cool if translations can continue across to the Organic Design repo.

I don't have the problem you're talking about, and I have the OD version running on many servers. Since you're still getting the issue with the OD version as well, it must be your configuration. First check that htmldoc is installed and functioning properly.

I'd prefer to stay in Github for the time being as I don't have time to figure out the Wikimedia process, after the move from SVN to gerrit and so on I just found it all too complicated.

https://github.com/OrganicDesign/extensions/tree/master/MediaWiki/PdfBook

The download link on the page links to the my own repo which is Organic Design, I no longer have commit access to the Wikimedia repo (I never had the time to figure out the new wikimedia process after they changed from svn) so I maintain my extensions in my own repo.

I think the Wikimedia and Organic Design versions are forked, what version are you using? I maintain the Organic Design version shown in the main Download link, if you used the extension from the ExtensionDistributor you'll have got the Wikimedia version. You could try whatever version you're not using and see if that fixes the problem.

Yep, private install, default search backend, SearchMySQL search type.