Transaction not yet indexed

YLkW9tfnefpkfKiWtGTLxJbC3jx41Nvf5StkeFvqEpam6KAo28b4Js45L8Cv6igBi1uuejeZkm3Ts1sSCLCXUtq

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