Transaction not yet indexed

28CSDdHWRi7rChUagS1pkksbmo51e1kk6WvshWbV8HcQgeGDg7yUDxAmULoeABhfQRKFYiPTYMSHy7NKpQCFmKMH

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