That might be. But on Debian, if you have a look to the apache error.log, exactly this folder is missing. So you will never see the WP on the second domain.
After
“cp -R firstdomain.tld seconddomain.tld”
and a
“chmod -R 777 secconddomain.tld/upload && chown -R www-data:www-data secconddomain.tld”
it works, after adding the complete path (mentioned above) in the “seconddomain – Sites – Settings” document.
After a “
service apache2 restart
” everythings works well (I’ve just reloaded till then).