Transaction not yet indexed

21mtLBfBU66D5Ejb9fHKxxyysYVBHFvPYb4tCSXraGPwtDPVvrv8CZ87D7dVsBpwf4aSMUkETpGFbN1WcGoESAYC

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