One of the sites that I am having this issue is https://staging.dldllp.com/.
I just tried to update the plugin there and the icon for the Team CPT goes away.
Here if the PHP code of that CPT:
<?php
add_action( 'init', 'your_prefix_register_post_type' );
function your_prefix_register_post_type() {
$labels = [
'name' => esc_html__( 'Team', 'text-domain' ),
'singular_name' => esc_html__( 'Team', 'text-domain' ),
'menu_name' => esc_html__( 'Team', 'text-domain' ),
'name_admin_bar' => esc_html__( 'Team', 'text-domain' ),
'all_items' => esc_html__( 'All Team', 'text-domain' ),
'add_new' => esc_html__( 'Add new', 'text-domain' ),
'add_new_item' => esc_html__( 'Add new Team', 'text-domain' ),
'edit_item' => esc_html__( 'Edit Team', 'text-domain' ),
'new_item' => esc_html__( 'New Team', 'text-domain' ),
'view_item' => esc_html__( 'View Team', 'text-domain' ),
'search_items' => esc_html__( 'Search Team', 'text-domain' ),
'not_found' => esc_html__( 'No Team found', 'text-domain' ),
'not_found_in_trash' => esc_html__( 'No Team found in Trash', 'text-domain' ),
'parent_item_colon' => esc_html__( 'Parent Team', 'text-domain' ),
'text_domain' => esc_html__( 'text-domain', 'text-domain' ),
];
$args = [
'label' => esc_html__( '', 'text-domain' ),
'labels' => $labels,
'description' => '',
'public' => true,
'exclude_from_search' => false,
'publicly_queryable' => true,
'show_ui' => true,
'show_in_nav_menus' => true,
'show_in_admin_bar' => true,
'show_in_rest' => true,
'hierarchical' => false,
'query_var' => true,
'can_export' => true,
'the_grid_item_custom_link_target' => _self,
'the_grid_item_col' => true,
'the_grid_item_row' => true,
'the_grid_item_content_color' => dark,
'the_grid_item_overlay_color' => light,
'the_grid_item_video_ratio' => 4:3,
'the_grid_item_youtube_ratio' => 4:3,
'the_grid_item_vimeo_ratio' => 4:3,
'the_grid_item_wistia_ratio' => 4:3,
'_wp_old_slug' => auto-draft__trashed,
'has_archive' => true,
'rest_base' => '',
'show_in_menu' => 'undefined',
'menu_icon' => undefined,
'capability_type' => 'post',
'supports' => ['title', 'editor', 'thumbnail', 'revisions'],
'taxonomies' => [],
'rewrite' => [
'with_front' => true,
],
];
register_post_type( 'team', $args );
}
I can share the login and pw if you want to take a look at the backend. Let me know!