I updated 3.3.0 to 3.4.0 yestarday and to 3.5.0 today;
No when I try to generate tracking code there is no to copy off and in error.log for that domain I see this:
FastCGI: server "/var/www/cgi-bin/php5-fcgi-*-80-matomo" stderr: PHP message: PHP Fatal error: Cannot redeclare class Piwik\\Plugins\\SitesManager\\API in /var/www/web/plugins/SitesManager/API.php on line 53, referer: index.php?module=CoreAdminHome&action=trackingCodeGenerator&idSite=7&period=day&date=yesterday&activated=
It was very hard to add new page to track and impossible to generate the code to inject to page for tracking. I tried to check sanity of matomo and there is no issue at all the only thing I had to do was add
always_populate_raw_post_data=-1 after update;