I'm trying to make a custom j4 administrator template - but I am unable to get Web Assets to show the CSS or JS of the new template.

Steps to reproduce the issue

1. Change ATUM template.xml to <inheritable>0</inheritable>
2. Copy the ATUM template with a new name, "test"
3. In the administrator/test/joomla.asset.json rename atum to test
4. In the index.php, replace:

$wa->usePreset('template.test.' . ($this->direction === 'rtl' ? 'rtl' : 'ltr'))
    ->useStyle('template.active.language')
    ->useStyle('template.user')
    ->addInlineStyle(':root {
		--hue: ' . $matches[1] . ';
		--template-bg-light: ' . $this->params->get('bg-light', '#f0f4fb') . ';
		--template-text-dark: ' . $this->params->get('text-dark', '#495057') . ';
		--template-text-light: ' . $this->params->get('text-light', '#ffffff') . ';
		--template-link-color: ' . $this->params->get('link-color', '#2a69b8') . ';
		--template-special-color: ' . $this->params->get('special-color', '#001B4C') . ';
	}');

$wa->registerStyle('template.active', '', [], [], ['template.test.' . ($this->direction === 'rtl' ? 'rtl' : 'ltr')]);

5. Switch to your test default template.

I've tried with my own custom template as well.

Expected result

1. Expect it to look identical to the ATUM template with the CSS and JS files

Actual result

2. THE CSS and JS files are missing

If we begin to add the full URL in the joomla.asset.json:

{
    "name": "template.test.ltr",
    "description": "The css file to be used when the site is left to right (LTR).",
    "type": "style",
    "uri": "media/templates/administrator/test/css/template.min.css",  
    "dependencies": [
        "fontawesome"
    ]
},

The template file will show, but Font Awesome and Joomla custom elements output to the wrong directory:

/media/vendor/fontawesome-free/css/fontawesome.min.css
/media/vendor/joomla-custom-elements/css/joomla-alert.min.css

ATUM outputs to:

/media/templates/administrator/atum/css/vendor/fontawesome-free/fontawesome.min.css?2464813a5b080100d427b8bdbd12fcaa

System information (as much as possible)

PHP: 8.0.28
Joomla: Joomla! 4.3.4 Stable

Additional comments