Transaction not yet indexed

5MMgKH3ZxbTT4aj9CUXFxUmjt2qVpaq1hHvPZ8rVwVCoWd9SA88FJGWPhz3Mi3q28hmkkNWqfAFX8XBc8v6chfe6

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