I recently upgraded to CiviCRM 5.9, WordPress 5.0.3 and PHP 7.2. Now when I try to create a new event from a template, after clicking 'continue' the template is cloned and I'm thrown into a template editing page. The new event is never created.
This happens both with pre-existing templates and with a completely new template. It does not happen with new events created without a template.
It is essentially the inverse of this bug that was patched last February - not sure if this is an unintended side-effect, or if I've set something up weird.