Transaction not yet indexed

tu1ST2ubYbgbXvDt4zmfcB6raScbpr5hRopSdPkr7GRtoLWByLsf4FkQHjGJRYg9QWD7K5y6yHZ3ap42aPNLaaU

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