I always use Real Favicon Generator to generate favicon images for my websites, and have never had any issue. Their favicon checker did have several issues come up for your site: https://realfavicongenerator.net/favicon_checker?protocol=https&site=discovernavarra.com. I suspect that the redirect on favicon.ico may be the issue, though I do not know for sure. I never use a provided … Read more
Problem after redirect homepage to /en/
How do I change the my website icon in the search results page of a web browser?
You can use the wp_head action to print code in the <head> block of each document. If your theme does not use the wp_head() function, then dropping do_action( ‘wp_head’ ) into your <head> block is required. Simplest way would be to wrap the favicon’s URL in a filter, and then change that depending on the … Read more
Via the Site Identity settings in the Customizer, I can’t upload a favicon image. Site Identity != favicon image. It’s used for favicons and resized down but it’s also used in lots of other locations. E.g. it can appear in: the theme header as the logo smartphone homescreens twitter and FB previews So uploading a … Read more
How to change the WordPress email icon?
Facebook favicon appearing on my home page
The link you provided returns a 404, that seems to be the problem.
You have to delete de cache of your browser
For me its showing different on Safari and different on chrome. When I checked page source, I noticed favicon is being called thrice. Please delete other two instances and then check clearing browser cache for all browsers. I believe it should work then.