Transaction not yet indexed

21UZkc4Z3cuGGY4WCvk2FAMpbXULTtWwvRZw1QyAv1SCS83HoTWkQKBoPHfd6335CM6smZCufVwQ6epyDNxAPKq6

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