Cancellation. On March 29, 2011, it was reported that Sym-Bionic Titan has been canceled due to being unable to acquire a toy license. On September 22, 2014, it was revealed on Adult Swim's Tumblr that both Beware the Batman and Sym-Bionic Titan were written off by the network.

What happened to Lance's dad Sym-Bionic Titan?

Edward is Lance's father and one of Galaluna's greatest scientific minds, he disappeared into the Rift Gate during its testing and has been not seen since.

Why does Sym-Bionic Titan have only one season?

Although an official reason for the show's cancellation was never given, the aforementioned insider told The Animation Guild blog that Titan was canceled because it “didn't have enough toys connected to it,” something Tartakovsky would later confirm.