Perhaps line 870 of YOUR_ADMIN/includes/functions/admin_access.php is not firing for some reason.
That's where the menu bar gets it's headers.
Perhaps you have some extra Admin menu item that is not properly listed in the admin_menus table.
This is an example of why I load
mod list to our customers' sites. It will often tell if we are missing a configuration in the database. I still make the change in
https://www.zen-cart.com/showthread....20#post1333420 just to make it easier to read the results.
HTH
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