Shortcodes not processing inside post content

I have shortcodes inside my post_content in a custom post type wordpress. But when I echo the post content, all the shortcodes are not getting applied.

What I’ve tried so far:

$  post = get_post(post_id, OBJECT); echo apply_filters('the_content', $  post->post_content); 

I’ve also applied the do_shortcode() function but that also doesn’t process the shortcodes. I’ve already applied most of the solutions present on this platform but no luck. Any help would be highly appreciated.

Thanks & Regards