Register wp dashboard widgets created via ACF Flexible Fields

wp_dashboard_setup.php

<?php
function custom_dashboard_widgets() {
	
	if ( function_exists( 'get_field' ) ) {
		
		if ( get_field( 'custom-dashboard-widgets', 'options' ) ) {

		$i = 0;

		while( has_sub_field( 'custom-dashboard-widgets', 'options' ) ) :

			$i++;
			
			if ( 'video_clip_widget' === get_row_layout() ) :

				wp_add_dashboard_widget( 'custom_dashboard_widget_' . $i, get_sub_field( 'title' ), 'custom_dashboard_widgets_output', false, array( 'content' => get_sub_field( 'video' ), 'class' => 'custom_dashboard_widget_video', 'layout' => get_row_layout() ) );

			elseif ( 'post_widget' === get_row_layout() ) :

				$widget_posts = new WP_Query( array( 'post__in' => array( get_sub_field( 'post' ) ), 'post_type' => 'any' ) );
				
				if ( $widget_posts->have_posts() ) :
				
					while ( $widget_posts->have_posts() ) : $widget_posts->the_post();
				
						wp_add_dashboard_widget( 'custom_dashboard_widget_' . $i, get_the_title( $post ), 'custom_dashboard_widgets_output', false, array( 'content' => get_the_content(), 'class' => 'custom_dashboard_widget_post', 'layout' => get_row_layout() ) );
				
					endwhile;
				
					wp_reset_postdata();
				
				endif;

			else :

				wp_add_dashboard_widget( 'custom_dashboard_widget_' . $i, get_sub_field( 'title' ), 'custom_dashboard_widgets_output', false, array( 'content' => get_sub_field( 'content' ), 'class' => 'custom_dashboard_widget_regular', 'layout' => get_row_layout() ) );

			endif;

		endwhile;
	}
}
add_action( 'wp_dashboard_setup', 'custom_dashboard_widgets', 999 );