Transaction not yet indexed

1UbkgZVDajZb1W5m3X9vBW2EqeGFpEb8yJvN53vmyGfpCkNwkyFowsvG3B4L21ZfoGLL3x6wcGJe12mngTtjf2s

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