Transaction not yet indexed

MmHZvGCe6oxmPc2Mvd8Y89sN6Um88TvKChq3r4MQHJv3zvDMPhjweEwi51UZGk5exdmKcKqjghStPGHGSCAZGb6

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