So after looking into my nginx logs i was able to see the actual issue
FastCGI sent in stderr: “PHP message: PHP Warning:
Undefined array key "post_content" in wp/wp-includes/post.php on line 4046
After debugging i was able to resolve it using follows :
File : wp/wp-includes/post.php #Line 4046
Replace Following
if ( ('' == $postarr['post_content']) || ('' == $postarr['post_title']) )
With
if ( (array_key_exists("post_content",$postarr) && '' == $postarr['post_content']) || (array_key_exists("post_title",$postarr) && '' == $postarr['post_title']) )
Not sure if it is optimal solution as it is wordpress core file and likely to be updated upon updating the wordpress version upgrade in future but for now it works.
Any suggestions for alternative solutions which may fix it on web stories plugin specific scope and not core level ?
