Transaction not yet indexed

21tkpTaNCkergWSSukrZ552DjYFbMvmvJ5K6oDp4F6UHgrM3yz3rvgEXWnmyEAEp3AcZ7n4A5dRdvcp9pPWQ7XZB

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