Having trouble uploading photos from Instagram?

[Mochi the Great]

I'm having trouble getting my Instagram photos to Facebook. When I take a picture with my phone and am ready to send it to Facebook, the phone says that the upload was complete, but when I look on my profile/newsfeed the pics are nowhere to be found. What's the problem and how can I fix it?
My phone said they uploaded yesterday around lunch and I checked again this morning and they still aren't there

[?]

Sometimes the photos do get uploaded but they take a few minutes to show up on your timeline. Have you checked back later to see whether or not it was actually uploaded?