Transaction not yet indexed

MEFmBoSyZUsuM2GQmqzQhcG78GzEemTXHnPKRz6HtfSmwnCe4ZaQ2UnKALvDPgBsKTdQuTqQJeHEXg8gSpMn4Aj

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