I cant find the custom html block

Welcome on StackOverFlow. This block is the legacy custom HTML and as far I know, it’s hidden but you add_filter( ‘widget_types_to_hide_from_legacy_widget_block’,’sof_hide_legacy’ ); function sof_hide_legacy( $widget_id ){ $widget_to_show = array( ‘custom_html’ ); $widget_id = array_diff( $widget_id, $widget_to_show ); return $widget_id; } Does this help you ?