Transaction not yet indexed

1AmLYMFjkDUrRGcjNM8KA3VY7gDL2GwHsfmeMKVQx9m7wYSgiqzsBa486BMAKurSBbCPYD5LufcfbW5f18LsPoZ

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