Transaction not yet indexed

21Xf3jgYZcdwbD36pZzsCreU4Vksdfew5ZiEB56zRuiQnzf2PfQimtjbRcdTTVFcxABKyEfhZeSdPW4t6538DBt9

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