Transaction not yet indexed

421ZMMiJ6S8GvYQyWE4kKAqRUebqwE9VseHrM26CfMuEbhqM1mzVtv2Vm2q1oAtBvtjMf9CKrpVSeumjMoFsY6AM

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