Transaction not yet indexed

SKkM851jpHQEN4W9UvcnnConJegB9ZichmQNWkPJTnm9H7pQVt8G4Pr1WfgqBkAvAv3dh1ffzEUGXdXKHneVVB2

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