Yes, the recent news published by NTSB (The National Transportation Safety Board) states that Boeing did not retain security camera footage which showed work being done on a door of a 737 Max which later blew out. The incident with the door happened during a high-speed taxi test in 2019.
The NTSB noted that the video might have provided valuable insights into how the door was worked on and potentially why it blew off. Boeing stated that they didn’t intentionally erase the video, but