Transaction not yet indexed

28CU2dsYZAsxtC9HgNsQJKhRJCnSpD8XggGpzvVGVRv4eWvqESSujhKZGCJG73cfk9BPgQH8HF7ju7nu6dSS4SiG

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