Transaction not yet indexed

5z21bfRVjY1DidjRcEPpL1e8r8ERSGRDvCqhrgPhPTwfrAma3BsEAGFS3gmowFhs5a9ZxRSCyYbpbLcHubdjkLmH

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