Transaction not yet indexed

21UwSQ3rMQjQrWr2xP9c33TNMGouaHjozVrxxJxefb2uAaFZVXwRGDvaf7XRZXAjyixeRMNDGSyZiwXEpmeYBcP3

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