Transaction not yet indexed

xC21cTd551ejf9GLU3DqPZ58hATeZd5NBoB7AGJD13sJcUXWqsf1DBbf4EwPAxLQZ9BB8uA1MvM47PC5qZPM2e4

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