Transaction not yet indexed

mkmMy53uNjVgmFk4gQDaGbKPf4Pb66eN81TUgajyvEtJiPndErFwAxCumpEFVxthLeMnY7CkFMbV7BGEGcZwDu6

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