It Appears That The Modernization Of China's Naval Forces Hit A Snag This Past Spring

 Which really didn't generate any attention of note. Mainly because China tried to cover it up. 

 How embarrassing.

 https://www.usnews.com/news/world/articles/2024-09-26/chinese-nuclear-powered-submarine-sank-earlier-this-year-us-official-says

 

 https://nationalinterest.org/blog/buzz/chinas-new-zhou-class-nuclear-attack-submarine-sank-during-construction-212966