Transaction not yet indexed

21EXaAzToSRoPNmhmZRE8KskU4WqZmEkfZjP9wpJbr6yZSibRX4rFh2QHSgexQqyDoJBHtzLEf8zz1yUgDJC8gS1

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