Transaction not yet indexed

5Z21CFDfkgZAcFUy75C15p3pxF1NdQCJJVcGEs8VxShdiXwdk5GEgHkaaWqosuybsSfL8a5BnP76QfjpZXyApKTq

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