Transaction not yet indexed

1Un6DoMfpbrCZqAzA2aNqndGZ4LiWdFG4AxJnjrRa4tf8NqXVMBGQnXFfP3kEUdo1r5mbWwUJuCtHRzMrEkE66Z

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