Instagram Stories Not Working

Every time I try to schedule a story on Instagram, it doesn't go through. When this first happened, I got a warning that it “FAILED”, but now I get nothing. It just stays grayed out in the calendar, as if it's still “SCHEDULED”. I've tested multiple things to figure out the problem, but no luck. I've reset cookies and cache, disconnected and reconnected, still didn't work. Furthermore, I noticed regular Instagram posts go through fine, but if I ever push the "Publish via mobile app" button, neither will go through. If you have any advice on how to get Instagram Stories to work in the Scheduler, let me know.