If you're using the website and are not able to add a new part to your story, this is likely happening because you have a hyphenated tag.
A story can have a maximum of 25 tags, but sometimes our system will process hyphenated tags as separate tags (e.g. #fantasy-adventure is read as #fantasy #adventure). That means that if you've already reached the limit of 25 tags in your story, these hyphenated tags might result in issues creating or publishing a new story part.
To fix this issue, remove any tags with hyphens and give it another try.
If the issue persists after that, please submit a Support request to us. You can submit a request by clicking ‘Fix a problem / Contact us’ to the right of or below this article.