Which notable issue affected both the director and writer of Body and Soul?

The issue that notably affected both the director and writer of "Body and Soul" is blacklisting. In the context of the film industry during the late 1940s and early 1950s, many filmmakers, screenwriters, and other entertainment professionals were targeted and blacklisted due to alleged associations with communism or leftist political ideologies.

The director,P’Joe (often known as the auteur of film noir), and writer, Abraham Polonsky, both faced significant impacts from this era of paranoia and repression. Their careers were hindered by the negative stigma associated with being blacklisted, which limited their opportunities to work within the industry. This situation not only affected their professional trajectories but also contributed to the larger narrative of artistic expression being stifled in Hollywood during that time.

Financial instability, lack of recognition, and censorship were issues that could affect many filmmakers, but the specific connection to the blacklisting phenomenon and its direct impact on the careers of the director and writer of "Body and Soul" makes it the most pertinent answer to the question.