Transaction not yet indexed

1Cu6eMUtpFsp5FHSdWs4rW5fMHdtxSZU7KU5LiN5qvW38jNu2WGWYpfjKJ5fexmkVGiHtkvLQjwKtaUkUCYFN4k

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