Transaction not yet indexed

21UrMZnvMGMFNxwnKeJ6a1FRAzHETHGpW8UYzGuNnh3ZHw6oHgtHbofkGDn5GYbF2UMMY4ckqipPDn6Yr6sTNcvp

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