I have found a solution. I’m unsure if its the “correct” solution, but it works for me.
In class.yith-event-tickets-frontend.php, find the following line:
$sold_individually = apply_filters( 'yith_wcevti_event_to_cart_individually', true );
Change it to:
$sold_individually = false;
I’m sure this can be set in the database, but it works as a proof of concept.
inside your images directory.
I was having similar problems until I noticed that the script had created the thumbnail directory with a different owner and group than the rest of my files and directories (httpd:httpd instead of suspects:suspects). Once I deleted the thumbnail dir and created it myself with correct owner, group, and permissions everything was great.
