Transaction not yet indexed

668ZAM3PuxYJ7kd3DsWc1ANjwP4FMNKvC5octLiGF1U8TDDRRX2D2tXwPtFQQMoPCViKD9XMT1k1PGrWPmL2uX4E

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