ramsey1971 Hi
Thank you for your report!
We’ve recently updated the T4 framework layout for Joomla 6. However, this update isn’t fully compatible with Joomla 5 (since T4 supports both J5 & J6), which caused the issue you’re seeing.
Please try replacing the following file on your site (unzip first): /plugins/system/t4/themes/base/html/com_config/modules/default.php
Let me know if this resolves the problem.