I am unable to access the "Styles" menu item for the Magnolia template in the J3 site admin. I can access the style edit menus for other templates.
Error displayed is:"500 JHtmlBehavior::mootools not found. "
Joomla! 3.10.12 Stable, PHP 7.4.33
Two applications were updated today prior to this problem appearing; JCE Pro and JEvents, both have been reverted to the previous version with a site restore.