Transaction not yet indexed

MpmNaHpPCobYa1HZzTCAnZakdau537XYomd1vmpAsWbCXDGeK6pnWUy26L9hxytQ2R8gpPXm4SiSPfv8cjkExAC

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