I’ve included all of the relevant code below. Here is what I’m trying to accomplish: A custom taxonomy of flavor. A custom post type of product. The ability to have flavor/product-name and another-flavor/product name vs product-name & product-name-2. What I’m experiencing with the code below is on the front end the 2nd product with the same name is taking the post ID of the first product. So if I create flavor/product-name and then create another-flavor/product-name, when I view the post on the front end, all of the content is from flavor/product-name instead of another-flavor/product-name when I view another-flavor/product-name. On the backend the IDs are showing correctly, but something is getting hijacked on the front end. But if I create flavor/another-product-name then that post works fine, but another-flavor/another-product-name is broken just like another-flavor/product-name.

add_action( 'init', $n( 'taxonomies' ) );
add_action( 'init', $n( 'post_types' ) );
add_filter( 'post_type_link', $n( 'product_post_type_link' ), 10, 3 );
add_filter( 'wp_unique_post_slug', $n( 'product_disable_unique_slug' ), 11, 6 );
add_filter( 'the_title', $n( 'admin_product_title' ), 10, 2 );
add_filter( 'body_class', $n( 'product_body_class' ) );

function taxonomies() {
    /**
     * Taxonomy: Flavors.
     */
    $labels = [
        "name" => __( "Flavors", "puff_theme" ),
        "singular_name" => __( "Flavor", "puff_theme" ),
        "menu_name" => __( "Flavors", "puff_theme" ),
        "all_items" => __( "All Flavors", "puff_theme" ),
        "edit_item" => __( "Edit Flavor", "puff_theme" ),
        "view_item" => __( "View Flavor", "puff_theme" ),
        "update_item" => __( "Update Flavor name", "puff_theme" ),
        "add_new_item" => __( "Add new Flavor", "puff_theme" ),
        "new_item_name" => __( "New Flavor name", "puff_theme" ),
        "parent_item" => __( "Parent Flavor", "puff_theme" ),
        "parent_item_colon" => __( "Parent Flavor:", "puff_theme" ),
        "search_items" => __( "Search Flavors", "puff_theme" ),
        "popular_items" => __( "Popular Flavors", "puff_theme" ),
        "separate_items_with_commas" => __( "Separate Flavors with commas", "puff_theme" ),
        "add_or_remove_items" => __( "Add or remove Flavors", "puff_theme" ),
        "choose_from_most_used" => __( "Choose from the most used Flavors", "puff_theme" ),
        "not_found" => __( "No Flavors found", "puff_theme" ),
        "no_terms" => __( "No Flavors", "puff_theme" ),
        "items_list_navigation" => __( "Flavors list navigation", "puff_theme" ),
        "items_list" => __( "Flavors list", "puff_theme" ),
    ];

    $args = [
        "label" => __( "Flavors", "puff_theme" ),
        "labels" => $labels,
        "public" => true,
        "publicly_queryable" => true,
        "hierarchical" => false,
        "show_ui" => true,
        "show_in_menu" => true,
        "show_in_nav_menus" => false,
        "query_var" => true,
        "rewrite" => [ 'slug' => 'flavor' ],
        "show_admin_column" => true,
        "show_in_rest" => true,
        "rest_base" => "flavor",
        "rest_controller_class" => "WP_REST_Terms_Controller",
        "show_in_quick_edit" => false,
        ];
    register_taxonomy( "flavor", [ "product" ], $args );
}

    function post_types() {
        /**
         * Post Type: Products.
         */

        $labels = [
            "name" => __( "Products", "puff_theme" ),
            "singular_name" => __( "Product", "puff_theme" ),
            "menu_name" => __( "Products", "puff_theme" ),
            "all_items" => __( "All Products", "puff_theme" ),
            "add_new" => __( "Add new", "puff_theme" ),
            "add_new_item" => __( "Add new Product", "puff_theme" ),
            "edit_item" => __( "Edit Product", "puff_theme" ),
            "new_item" => __( "New Product", "puff_theme" ),
            "view_item" => __( "View Product", "puff_theme" ),
            "view_items" => __( "View Products", "puff_theme" ),
            "search_items" => __( "Search Products", "puff_theme" ),
            "not_found" => __( "No Products found", "puff_theme" ),
            "not_found_in_trash" => __( "No Products found in trash", "puff_theme" ),
            "parent" => __( "Parent Product:", "puff_theme" ),
            "featured_image" => __( "Featured image for this Product", "puff_theme" ),
            "set_featured_image" => __( "Set featured image for this Product", "puff_theme" ),
            "remove_featured_image" => __( "Remove featured image for this Product", "puff_theme" ),
            "use_featured_image" => __( "Use as featured image for this Product", "puff_theme" ),
            "archives" => __( "Products", "puff_theme" ),
            "insert_into_item" => __( "Insert into Product", "puff_theme" ),
            "uploaded_to_this_item" => __( "Upload to this Product", "puff_theme" ),
            "filter_items_list" => __( "Filter Products list", "puff_theme" ),
            "items_list_navigation" => __( "Products list navigation", "puff_theme" ),
            "items_list" => __( "Products list", "puff_theme" ),
            "attributes" => __( "Products attributes", "puff_theme" ),
            "name_admin_bar" => __( "Product", "puff_theme" ),
            "item_published" => __( "Product published", "puff_theme" ),
            "item_published_privately" => __( "Product published privately.", "puff_theme" ),
            "item_reverted_to_draft" => __( "Product reverted to draft.", "puff_theme" ),
            "item_scheduled" => __( "Product scheduled", "puff_theme" ),
            "item_updated" => __( "Product updated.", "puff_theme" ),
            "parent_item_colon" => __( "Parent Product:", "puff_theme" ),
        ];

        $args = [
            "label" => __( "Products", "puff_theme" ),
            "labels" => $labels,
            "description" => "",
            "public" => true,
            "publicly_queryable" => true,
            "show_ui" => true,
            "show_in_rest" => false,
            "rest_base" => "",
            "rest_controller_class" => "WP_REST_Posts_Controller",
            "has_archive" => "products",
            "show_in_menu" => true,
            "show_in_nav_menus" => true,
            "delete_with_user" => false,
            "exclude_from_search" => false,
            "capability_type" => "post",
            "map_meta_cap" => true,
            "hierarchical" => true,
            "rewrite" => [ "slug" => "products/%flavor%", "with_front" => false ],
            "query_var" => true,
            "menu_icon" => "dashicons-products",
            "supports" => [ "title", "editor", "thumbnail" ],
        ];

        register_post_type( "product", $args );
    }

    function product_post_type_link( $permalink, $post, $leavename ) {
        if( 'product' === $post->post_type ) {
            $flavor = get_field( 'flavor', $id );
            if( !empty( $flavor ) ) {
                $permalink = home_url( "products/" . $flavor->slug . "/" . $post->post_name . "/" );
            } else {
                $permalink = home_url( "products/none/" . $post->post_name . "/" );
            }
        }

        return $permalink;
    }

    function product_disable_unique_slug( $slug, $post_ID, $post_status, $post_type, $post_parent, $original_slug ){
        if( 'product' === $post_type ){
            $slug = $original_slug;
        }
        return $slug;
    }

    function admin_product_title( $title, $id ) {
        if( is_admin() && 'product' === get_post_type( $id ) ) {
            $flavor = get_field( 'flavor', $id );
            return sprintf( '%s %s', $flavor->name, $title );
        }
        return $title;
    }

    function product_body_class( $classes ) {
        if( is_admin() ) {
            return $classes;
        }

        if( is_singular( 'product' ) ) {
            $flavor = Helpersget_flavor();
            $color = get_field( 'color', $flavor );
            $classes[] = sprintf( 'theme-%s', $color );
        }

        return $classes;
    }