Luis Nobrega here...thanks for the tweet when comment feature. ;)
These last updates unfortunately, can't precise when but it was recently, all the programatically published posts don't generate tweets. I'm using:
do_action('register_post', $user_login, $user_email, $errors);
But the comments are generating tweets. Also checked the logs and the only ones are because of the memory:
script tried to increase memory_limit
Can you help me please? Thanks!