Transaction not yet indexed

TZaPkPeUcKqbMDhuvEhoo6mZHDx93BuoRLvEatqEMXBfNdWbUF8Rc5LjqQNGqR6AMKGAi18FgoYyFSWJS5TS5p5

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