Transaction not yet indexed

MmYU2DppSuANuMefXbmpERPRgynzd4NgDdxrix36pVGPEJMmn2R14Vo4pnMF2EoD2VJ2wEkUkPdQcSHMitJhCcQ

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