Transaction not yet indexed

YM6U2pfFygMBRtKMHCi6vAL5dMoA2n5zBPs8LrTppm7KQgek3E5cbRfA4b1ahbi8dNcPk2DXHiU3vxBNfYnGnF7

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