Transaction not yet indexed

MNNnmkWcfLs4u2ynn6C2kqS9M7kPrC5aLdyk2P3GPsMa39whkAWbdeL5GuJ1eiog8cCW5tMFPPnoSsTJZoG1sHj

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