Transaction not yet indexed

1u6TStF7kyjwTZEukjo2eLvx4RroRst68WJFsFnytxZES1ZKwFMH2ybfKJ1t6HzPp35w7ogaM5h4AnFH6qhpid2

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