Comments on Instagram not showing up?

So I'm using my iPhone 5 Instagram app and every time I try to post a comment on a picture on Instagram it say its sent but when I refresh it, it is no longer there. My comments use to work but now they have stopped. This has been going on for about 2 weeks. I have tried deleting the app and getting it again but the comments still won't show up! If anyone could help me with this that would be awesome!

Did you change any setting on it? It is really strange.

This started happening to me as well, this afternoon i noticed that whenever I comment, I refresh and the comment was never there… It may be an instagram comment limit of some sort… Hope yours is fixed soon as well!

I'm encountering the same issue and its definitely not the setting as i'm able to comment on other accounts except one particular account

This new feature will allow people to either enable a filter that will automatically block a default list of words to hide from their Instagram comments, or, with the custom keyword list, they can go further and choose certain words that they don't want to see in the comments on their posts.