Transaction not yet indexed

21Sum2TPLBdKsjxhtGnBfGC8HqJEKxLT5mS4Kd1MmjCgWWdHXB6vqsKe9HvjUnakcMBpNbRcRLb7KJ98uSNJRZiD

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