Automatic posts no longer sends notifications

Previously i was making automatic posts (scrapping some details with cron and schedule post after post is ready) and using those 2 flags i was able to send notifications once planned post is published.

After updating to new version this no longer works. any suggestions, how to achieve the same with new version of plugin ?

Current version 3.1.2

    add_post_meta($post_id, 'onesignal_send_notification', 1);
    add_post_meta($post_id, 'onesignal_meta_box_present', 1);