Transaction not yet indexed

421He3Z1ihz1P5jdnzHjqDGuefLa7m5mYqtZv4yVLuacCToqFZVpkibbpfYNfEKuCDVFDNopaHzXvcbSdeUhE7sy

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