Steps to reproduce the issue

Install the nightly build, then the demo data. Go to the front, log in, a menu will be available on the right - select template settings.

Pay attention to the LOGO item. The buttons for selecting an image also do not work.

The console reports a problem in media/system/js/fields/joomla-field-media.js:

Uncaught TypeError: The specifier "joomla.dialog" was a bare specifier, but was not reassigned to anything. Associated module specifiers must begin with "./", "../" or "/".