Transaction not yet indexed

21NksZsvkeUpkH5AYun9qcvuLVsG2tHEzoBVEzPbJHfHzCzjbr9SLcPsFNBQ7Abz1e5aj5UYqMJAQZ1NXwnfF9b8

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