Favicon Not Showing In Theme

Hello all. Hope someone might be able to assist. I have a site I’m working on and I’d think this would be simple. I added a favicon under Appearance, Theme Options. However, it’s not showing on my site at all.

I’ve done some troubleshooting, adding

<link rel=”shortcut icon” href=”<?php echo get_stylesheet_directory_uri(); ?>/favicon.ico” />

to the header.php in Appearance, Editor and still doesn’t work. Then I went to the .htaccess file and added

RewriteCond %{REQUEST_FILENAME} !favicon.ico

which also didn’t work so I removed that.

I’ve added favicons to every site I’ve ever created without issue. Can anyone suggest a fix for this? I’m stumped.