Along with all the Jewish and leftist actors, Heinz was dismissed from his work on 27 February 1933. He left for the Netherlands, from where he moved to Great Britain, and on to Vienna. He finally settled in Switzerland, in which - with many other exiles from Germany - he acted in the Schauspielhaus Zürich. At 1938, he began to direct plays in the theater. During his time in Switzerland, Heinz was one of the founders and the president of the Swiss Free Austrian Movement. He rescinded his membership in the KPD at 1943.