Thanks, Koop! Indeed it was a plugin conflict, namely WordPress Google Calendar. Once I deactivated that the Debug Bar showed up. Unfortunately, that’s not really a plugin I’d like to keep deactivated right now on my site. But I could keep it off on my local development site and use the debug bar there.
I have another question, though maybe I should start a new topic for it — now it seems the Debug Bar doesn’t show any warnings unless WP_DEBUG is set to true. But in that case, the warnings are printed all over the place so what do I need the Bar for? Wouldn’t it be helpful for the Bar to show the PHP warnings and notices even if WP_DEBUG is off?
Thanks,
Yankl