Don’t worry! Just open the app and we’ll give you the chance to post to Instagram immediately. You’ll also have options to delete the post or send it back to Drafts. If you don’t do anything, these posts will sit in your “Schedule” section on the mobile app until you perform an action.
Posts that you missed will have a crossed bell, followed by the word "Missed":
Tap on the missed Post to publish it directly to Instagram, delete the post, or send it back to Drafts.