Transaction not yet indexed

1MDH4ixSGg3D4x4USvbQpfCCnA2Yokhovaj4Hv2geNFDWqqk6kCxcLZwuBKtcAUrk7s1vu9eHoEAwPS1aMNxA1S

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