Unfortunately, posts might sometimes fail due to many different reasons. If your post fails (status FAILED) please try out the following steps below.
Try to publish the post again. Long press the failed post and select Retry.
If Retry didn't help, try to reconnect the account again.
3. Options for failed post
You have also different options to manage the failed post in the Post details view.
4. Troubleshoot failed posts
You can also troubleshoot failed posts by platform:
Contact our support if the above didn't help.