Transaction not yet indexed

Tb6D5Qcb9fmTaNTnNPJcQnfQk1X1NPJZWsDXpV8ifKQxbmYASh2xztrieWkvdwADtERKKChJEdBWNxKYQLaLo2u

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