Transaction not yet indexed

421vKMM8f8auEkN4WWqkBfMsscNRXSgkvRYGwSj9N5KmSqyoFkDi88DBsXbq2rSZgc5BSXFwmFyFSUMzdTjVCWHR

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