[Observium] Problem adding devices after upgrading to 0.16.1.7393

Hi...

Yesterday I upgraded my Observium to Version 0.16.1.7393 via svn. The "svn up" did follow an immediate "./discovery.php -u" and a flush of the browser cache. But when I try to add a device I get a somewhat incomplete screen. See attached screenshot.

Is this a bug or did I do something wrong?

Thanks for your help,

Roland