Transaction not yet indexed

Cb6fvFjaVm6UCwPS673EjS7fpDAatxEUavfnbbFX4wde7ErJtm4MWcMz4kmgvZbfGpPQD7zuBcCYPu19G6rUEv9

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