Transaction not yet indexed

u666GX2C2CcmkDiBDQ16oPswyG6q3M2U2dbVBEky6eqtCtMcPSVakTg9RLSn6jjXDQgho9yCM6G1VVfU2RseA5s

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