Transaction not yet indexed

mktqn6FR9W2zmRVwcafRx2i7s7B8Lc74XkmVkUXAPzi2CGYDxViRVE8GCqXZmcPZP2aJoHyF7hWfKHPn9zKLHM2

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