Hi there,
I have found the following bug in the T4 framework for Joomla 4.
When opening any front-end form (eg. Edit Profile page or any page where layout=edit), the T4 plugin does not render the template but instead it only loads some basic admin css.
I have located the issue in the two following files:
plugins/system/t4/t4.php
public function onAfterDispatch()
-- There should be a check for isClient('administrator') for the $inedit variable
plugins/system/t4/src/t4/T4.php
public static function inEdit()
-- Same as above, there should be a check for isClient('administrator') for the $inedit variable