Transaction not yet indexed

MN21Nq2bmfwGNwRcV6onhYV6PXRUPBAishJqkwDm5UodpKXNs6tGVPW3FDLSTeUHT9EdrrKZXG2eP8PF1s7FDRN

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