Transaction not yet indexed

MT9u3x5bUcB8AxNTqE6oBiHaFxKKLDwLGhPazhiczZxto5gNm6mLioPPqpqS3KmFv8DAxs8h2vpePzAFKcQQUSq

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.