Transaction not yet indexed

21n6pNsDJR5h6k5eCssTCAnVAdLPTujQ6Pe4oDWuoJhkf3Y65RCMDaCr6GGQUYQChGHANHZQgjGmA4VxAz5bfmst

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