Transaction not yet indexed

668eCaCtHBhXPRfgxcwek2tZbtGuDbPtTFaPpPMa3DhjgSGgceiVao9XQTHefB3vdMQ7D4dhuwqPHSs4YueW81GN

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