Transaction not yet indexed

MekCmnNWkvj7GQN35PxS8nx1a7hScD9c8fSer5dX2dca5TLfidoqvvJopLbmS7pJwW7TXGR7KrrNq5o7QSkz2z8

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