Transaction not yet indexed

5U66mgNjFXAMdJvX4FU1S9MEnpg8wgEShMvn3XWA2WsFZq2X6f98Sv3xHJZ6m7Rpm2LpLKdtctza5ACmd9G42nqM

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