Transaction not yet indexed

5421MfK5FMNDkmsbXVKTxF2VChCqVsperhDvbXJJG487Q18zAHrByv6URfxmdKvGmb9mg3qvLNVnZiq4bA8zRFvR

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