Transaction not yet indexed

21c6vEdy7qHzKRMgbQ2CfTRBnwrYgb3RrdrGbV3Vmsv44duHeoUrLqK8uxn4DJuN3pQ9rbbx3zmV7hL9tKZENkq1

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