Transaction not yet indexed

mdk3pDwKSW5aUBvsUXMoqcUV2JdmBNrVfCaEcoHxGDW5Ujr6ehmHXqVoP4XAXCD3WBX9zAmV1H5X3PVwGm3j8mf

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