Transaction not yet indexed

668UG2jyk8ScXEW8Yu9Zb3woN9U2Hx5EPCNAd5DFyBNNsPmSKm16Jzf5f4113QnHrtaTfEqiNiCdpTjSwRrZpzmQ

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