Transaction not yet indexed

1JMgnbZK4vyYQLMDKaAVuwrupUA2j3MPPVVtBgKpzeWAWKXK1AaMabB2G36fYYTLZpzRxe8VsPkPNDpqf8p8p3M

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