Transaction not yet indexed

21D6mdGrf88aioLdcpJmPjY2YpUnfaAECcSG3tCWsFu2pcs3szEari5oypSjoYRe3VU4PZVFRVutiRgJC2jB1FVH

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