Transaction not yet indexed

5U21NLRHS8nHFffcgxSG6P3FJSK1ftfdnSdYEfPLqb3C7fUh9ZWLahijAb4XaDAhLJdWPJoZDmujGeMRg2znL9k7

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