Transaction not yet indexed

21buUSQn5jKc88Knz9uhfbA24GPNvz5zSBFjPhnpeaX7zWxt44yDAfK8VnU8xPgRH3ZvdEeMR8UAdhL7PFsfSas5

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