Transaction not yet indexed

66U4RM51Kx91eWHgBgEP7EGkcif25d3HFhCnKjNxS6F2GhG2NBDPfksJTUkp2PPCxaZbD5XqPFHujbEURA2Hq5PR

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