Transaction not yet indexed

21b4Z92UZAo7j8qGWWtqg1tavpZFb6gqMrgxiUFhBNgCS9W25rdzd7YkynZ5oHVzrW8Tby5aMqPBQhGBaBCveAN8

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