WooCommerce: One term for Many Product Attributes

You need to understand “product attributes” are basically taxonomies so in your case “Has Fingerprint”, “Has Dual Flash” are taxonomies which can contain different terms and these terms should be unique, you can’t store terms with same name.

Now right now you have 2 different Taxonomies, so there should not be issue of having 2 same terms with 2 different taxonomies. Just make sure you are not adding “Yes” to same taxonomy.